Help, went from AOSP to Stock rooted

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http://forum.xda-developers.com – Can someone help, i just used odin to flash the rooted g1 image. Now i am stuck at the "samsung" screen. I just came from other custom roms such as cyanogenmod, aokp, and other touchwiz roms. I am assuming i have a diffrent kernal or diffrent bootloader and thats why I am stuck? How can i fix this? (HowTos)