How to revert my G1 back before RC30

[dfarted]

hello fellow droids, woke up this morning and check my yahoo mail inbox thru my G1 and something pop-out that it say to update, I thought it was my inbox that needs to be refresh and so i did, but it wasnt, its d new OTA F**k....anybody knows how to reverse the process?

[dippedinsauce]

im guessing download the rc29 update and manually update it? just a guess i wouldnt do it on my account, that just seems logically correct