thanks for the reply.
so first time i tried to flash the boot loader i put vibrant_froyo.tar.md5 in the "bootloader" section and flashed it, and it said it worked. upon reading the instructions more carefully, i realized that i should have put it in the pda section. so when i go and do that, i get this error:
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Vibrant_Froyo.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> Set PIT file..
<ID:0/003> DO NOT TURN OFF TARGET!!
<ID:0/003> Can't open the specified file. (Line: 1813)
<OSM> All threads completed. (succeed 0 / failed 1)
i do not get this error if i leave "re-partition" unchecked, operation completes but phone does not boot up, its just stuck at the "Vibrant" logo.
bootloader instructions i found from here: