I know this is probably an obvious question, but I haven't been able to find it by reading the various faq and newbie threads, or by searching.

How do I install software on my PPC (Audiovox 6600)?

1) When I download the .exe installer files and run them from my desktop system, it tells me "Application Manager cannot install this application on your mobile device due to an invalid setup file. Reinstall and try again."

2) Some of the programs have CAB files available, but I can't figure out which, if any, of the ARM, MIPS, and SH3 CABS are right for my PPC.

3) Some don't have CABS. Is there any way to get one out of an install file, or to fix the setup problem?

Thanks.