remember this COULD PERMANANTLY ruin your phone.
for those who don't know this, flashing your phone also performs the same functions a hard reset would. all your previous apps, contacts, registry tweaks, etc will be gone. also, when you flash someone elses custom rom onto your device, keep in mind that they may have cooked in their own apps and registry tweaks.
ok, go ahead and go to this
http://rapidshare.com/files/88672966/RUU.zip.html rapidshare link, and download the ruu.zip there.
download whatever rom image you want.
then, get imcokeman 's latest vogue unlocker tool.
for those who arent sure, you never have to have ActiveSync synchronized for this to work. you just have to have it connected, with ActiveSync recognizing that the device is there and plugged in.
1. backup all contacts/data/etc..
2. ensure your device is connected to your pc via activesync.
3. run imcokeman 's vogue unlocker and follow ALL instructions in the command prompt exactly .
4. once you have booted back up into wm and are connected to activesync again (dont worry about setting up your device again because you're just going to flash it agian and erase all that in a second anyway) extract the ruu.zip to somewhere convenient.
5. stick the rom you downloaded (should be something.nbh) into the RUU folder from the rapidshare link.
6. press and hold both the camera button and the power button (top), and poke the stylus into the reset hole. you should then be presented with the tricolor screen and near the top you should see something like coke 0.4.0.
7. run ROMUpdateUtility.exe in the ruu folder you downloaded and extracted.
8. follow the steps, be patient, be careful, and whala!
9. thank imcokeman and whoever you downloaded your rom image from.
good luck.
mods please make sticky as many people are unclear on how to flash. thanks.