This must be a first, I've never considered how to make C++ more stylish. I can only guess you are running command line or console applications....that is, just a plain text interface.
As far as making C++ programs look more 'stylish' the sky is the limit. There are too many ways to mention without more information. Are you running on Windows or Linux? Which compiler ae you using?
If you are talking about making your code look more stylish. This comes down to the code-style and IDE you are using. I use the Eclipse + CDT IDE with the K&R Coding Style.
If you want your application to look better then there are many ways to do this. For a console application you are able to write colours etc to the console. For a non-console application, the sky is the limit. Many GUI toolkits offer HTML controls so you can use them to interact with your user by generating HTML.
If you want a GUI on your application. You will need to use a Toolkit. With Dev-C++ through the update manager you should be able to install either GTK, FLTK or WxWidgets. Then you will need to study the one you installed to learn how to use it :)
Chris: Thanks, we try to promote open discussions that are informative to everyone.
www.wxwidgets.org :) But Dev-C++ has an update manager built in, you should be able to find a WxWidgets DevPak in there that you won't have to configure etc. I suggest checking there first, as this is how I used it in Dev-C++ many moons ago.
Microsoft Visual Studio is a multi-language IDE for Windows. Usually runs from like $300USD+ (I think, I've never paid for it as work always does).