Root your CS Hero Detailed guide

See this thread for links and help with flashing a rom if you're rooted...

http://www.csouthforums.com/2011/03/28/yearning-to-upgrade-your-hero-and-tired-of-waiting/#post13

Note that I've had better luck downloading large files to the PC and then copying to my SD card, but that may be because I have a weak signal here.