rumor touch: Can you add apps and games to the rumor touch through USB?

I don't have a data plan and can't afford the extra charges. If there is let me know! Thanks.Can you add apps and games to the rumor touch through USB?
I tried doing it through the memory card (with a micro sd card converter) and apps from getjar (Sprint free app store) and they didn't work so I don't really think you can. I just go on my phone :\