I've moved it to the general Galaxy S forum but would like to ask for more info and might have to move it again. Is the device rooted? Also, is it the international Galaxy S (I-9000) or a us carrier branded Galaxy S, (vibrant, epic 4g, captivate, or Fascinate)?
The reason I ask is because different variants have different button combos to boot directly into recovery or Odin mode. Knowing which one can help me get your phone running correctly again.