if you bought your phone at a store, it certainly didn't come w/ 6.1. the official ROMs only have wm6.0 on them. if you want to try flashing your rom manually, you can update to wm6.1
Here are a few items to consider:
Item #1: Read before you start asking lots of questions. 99% of your questions are answered already, and exactly 87.45% of them are answered on the first page of this thread in the opening post.
Item #2:
http://forum.ppcgeeks.com/showthread.php?t=9093 <-- you can find some basic info and some of the programs that you'll need here.
Item #3: before you do anything else, I recommend flashing the latest (gps enabling) update first (but it sounds like you've probably already done this).
From there, if you can't figure out for yourself how to do this, search the forums, because there are already 15,683.3 posts already discussing this all in detail.
Good luck!
- Taxilian
(Disclaimer: 87.4% of all statistics are made up on the spot)