Very Confused Please Help!

I am confused. I have done some C++ compiling before for linux MUDs, however, when I downloaded TGE and TBE, I am having some problems. The sample demos are working even before I try to rebuild. I tried to use eclipse and it is telling me that -k is invalid (make -k clean all). I have tried to change a few things, but I haven't seen this error in the forums. Also how do I get the documentation from the code, That might help a lot. Does the version that I purchased online need to be rebuilt to run, or do you just rebuild after you make changes? Are the sample files used as the base to making the game?

Thanks for all the help, hope these questions aren't too stupid!

Charlie Wolfsandle
www.fivealarmstudios.com