Problem in a Tree!

[Rooster]

Hello friends, here I put everything in the main, easy to compile, I am implementing one exercise that requires one tree, this tree should only have 3 nodes, the fact is that I have one function (treeContains ()) that given 1 char * name, I have to bucar node I tell you, the fact is that I looking bad, I have one data output is correct and shows me all otherwise erroneous data, which can be??

#include <iostream>
#include <stdio.h>
#include <string.h>
#include <cassert>
using namespace std;

class Skill {
  private:
	  char *name;
	  char *description;
	  int level;
  
  public:	
Skill(){ }
~Skill(){ }
Skill(char * name, char* desc, int level)
{
	this->name = name;
	this->description = desc;
	this->level = level;
}
char* getName(){	return this->name;}
char* getDescription() { return this->description;}
int getLevel(){	return this->level;}
};

struct TreeNode {
    Skill item;         // The data in this node.
    TreeNode *left;      // Pointer to the left subtree.
    TreeNode *right;     // Pointer to the right subtree.
    TreeNode *middle;     // Pointer to the right subtree.    

    TreeNode (Skill sk) 
    {        
		item = sk;
        left = NULL;
        right = NULL;
        middle = NULL;
    }
};


class SkillTree {

  private:
	TreeNode* root; 
	char Title[100];

  public:

	SkillTree ():root(NULL) { }
    ~SkillTree (){ }
    SkillTree(char ch[]):root(NULL)
    {
	  strcpy(this->Title, ch);
    }
    bool Empty()
    {
	  if (this->root==NULL)
	 	return true;
	   return false;
    }
TreeNode* treeContains( TreeNode *root, char* parentName ) 
{	
     if (root==NULL) {
        return NULL;
    }
	 if ( strcmp(parentName, root->item.getName())==0 ) {     
        return root;
    }
	 if ( root->left!=NULL && strcmp(parentName,root->left->item.getName())==0) 
	{
        return treeContains( root->left, parentName );
    }
	 if (root->middle !=NULL && strcmp(parentName , root->middle->item.getName())==0)  {
		return treeContains( root->middle, parentName );
    }
	 if (root->right!=NULL && strcmp(parentName , root->right->item.getName())==0) {
        return treeContains( root->right, parentName );         
    }
	return root;
}
	
void AddSkill(char* name,char* desc,int level)
{
	Skill item(name, desc,level);	
	if(root==NULL) 
	{
		this->root = new TreeNode(item);
		
	}
}
void AddSkill(char* name,char* desc,int level,char* parentName)
{
	Skill item(name, desc,level);	
	TreeNode* parent = treeContains(root, parentName);
	
	if (parent!=NULL)
	{
		if ( parent->left == NULL )
			parent->left = new TreeNode(item);
		else if ( parent->middle == NULL )
			parent->middle = new TreeNode(item);
		else if ( parent->right == NULL )
			parent->right = new TreeNode(item);
	}
}	

void inorderPrint( TreeNode *root ) {
    if ( root != NULL )
    {  		
		
		cout<<root->item.getName() << " -- " <<root->item.getDescription() <<" [Lvl: " <<root->item.getLevel() <<"]\n"; 
        inorderPrint( root->left ); 
		inorderPrint( root->middle );
        inorderPrint( root->right );       
    }
}

void Display(ostream& out)
{
	out<<"Skill Tree: "<< Title <<"\n";
	if (Empty()) 
	{
		out<<"  Empty\n";
	}
	else 
	{
		inorderPrint(root);
	}
}
};

int main ()
{ 
	SkillTree student("Student");
	student.Display(cout)	;

	student.AddSkill("Alphabet","Mastery of letters and sounds",0);
	student.Display(cout);

	student.AddSkill("Reading","The ability to read all manner of written material",1,"Alphabet");
	student.AddSkill("Writing","The ability to put your thoughts on paper",1,"Alphabet");
	student.Display(cout);

	student.AddSkill("Speed Reading Level 1","Read any text twice as fast as normal",5,"Reading");	
	student.AddSkill("Speed Reading Level 2","Read any text four times as fast as normal",10,"Speed Reading Level 1");
	student.AddSkill("Memorization","Memorize average sized texts",10,"Reading");
	student.AddSkill("Massive Memorization","Memorize large sized texts",20,"Memorization");
	student.AddSkill("Spell Writing","The ability to write spells",5,"Writing");
	student.AddSkill("History","The ability to write (and rewrite) history",10,"Writing");
	student.AddSkill("Written Creation","The ability to write things into reality",20,"History");
	student.Display(cout);
	
	system("pause");
}

and my expected output:
Skill Tree: Student
Empty
Skill Tree: Student
- Alphabet -- Mastery of letters and sounds [Lvl: 0]
Skill Tree: Student
- Alphabet -- Mastery of letters and sounds [Lvl: 0]
- Reading -- The ability to read all manner of written material [Lvl: 1]
- Writing -- The ability to put your thoughts on paper [Lvl: 1]
Skill Tree: Student
- Alphabet -- Mastery of letters and sounds [Lvl: 0]
- Reading -- The ability to read all manner of written material [Lvl: 1]
- Speed Reading Level 1 -- Read any text twice as fast as normal [Lvl: 5]
- Speed Reading Level 2 -- Read any text four times as fast as normal [Lvl: 10]
- Memorization -- Memorize average sized texts [Lvl: 10]
- Massive Memorization -- Memorize large sized texts [Lvl: 20]
- Writing -- The ability to put your thoughts on paper [Lvl: 1]
- Spell Writing -- The ability to write spells [Lvl: 5]
- History -- The ability to write (and rewrite) history [Lvl: 10]
- Written Creation -- The ability to write things into reality [Lvl: 20]


regards rooster