Mon Mar 31, 2008 5:10 pm by civilchaos
Sorry dude, the only way to get custom firmware is to upgrade from the very first firmware which is the only firmware to give kernal access, that being 1.50, and with a high firmware such as yours, you will require a pandora battery, which is not down my avenue, since I never went beyond 2.80 which had a downgrader.
Don't worry though, I'm sure by tomorrow you'll have had many replies from the guys here that know the pandora battery stuff, though, it would save time if you just checked out other threads, there have been countless people asking the same question as yourself, and it would probably please some people if you just browsed some of them first, check out the "firmware hack and exploits" threads and even in these "help" threads. You can get Pandora batteries from eBay etc..