Sorry if this has been asked before, but I didn't see it in the archives...

I've downloaded and installed DevkitAdvance for Linux (the one from
http://www.doc.ic.ac.uk/~tb100/). I couldn't get it to compile a simple test
program (it complained about no interrupt table and some overlapping
sections). To fix this, I went and got Jeff F's crtls package from
http://www.devrs.com/gba/. Now I'm not quite sure what to do with it, so I
ran crt0.S through the gcc preprocessor, then compiled it using as. I used
locate, and found four places wher crt0.o was. I wasn't sure which one I
wanted, so I put the one I compiled over all of these. I couldn't figure out
how to make gcc use the lnkscript, so I had gcc just compile and assemble,
and I used ld -T lnkscript to do the linking. Then I objcopy'ed it.
I didn't get any errors from this process, but anything I compile, even demos
other people wrote don't run. In an emulator, they just come up with a black
screen, no errors. Other pre-compiled ROMs work fine.
Can anyone tell me what I'm doing wrong?
Thanks, and sorry if this is a little long-winded.
AtariMike