Default [Q] Xperia X10A - Can't get past the lockscreen

Hey guys. I just got an Xperia X10A off eBay. The seller said that it had a lock code that they couldn't get past, so I Googled it, and it looked like a hard reset was fairly easy. So I tried the Left+RIght+Power button combo while the phone is off, and that isn't working, it just boots into Safe Mode, which still won't let me past the lock screen. I can't get in to enabled USB debugging. What other options do I have for this? Is there a way to mount the phone's storage fdisk it to manually reinstall Android or something?

Thanks much, I really appreciate it.

Edit: I just realized this might not be the right forum area for this. If a mod wants to move it, I would appreciate it.