I'm working on Dev C++ and I know this program has slightly different libraries to Borland C++, which I have been working on. Does anyone know of a website they can point me in showing what the Dev C++ are in replacement of the Borland C++ ones?
There is in general no "universal" drop in replacement for one set of compiler specific libraries for another compiler specific set of libraries (see the FAQ on 'missing header files').
Once you step out past the standard C++ library, you're on your own as to how you achieve portability from one compiler to another.
If on the other hand you have a specific library in mind, then mentioning it might offer up some specific suggestions.