A good free compiler for windows is djgpp. gcc does come with cygwin but not the default install, it's quite a task to get it working sometimes so unless you absolutely need a linux environment to compile and can't use linux through dual boot or on another machine somehow it's usually not worth the hassle.

If the bugs are compiler errors then write down the error and the section of code it's happening in and there might be a quick fix, but if it's something a little more complicated like a logical error in the code then hopefully someone else has the time to help, I'm quite busy with midterms and assignments right now.

[edit]Ah I just saw the errors, when the program crashes does it spit out an error log anywhere? That would be very helpful in seeing if the problem is an indexing problem, parsing problem, or perhaps something entirely different.[/edit]