read through about 20 pages on the thread at xda
http://forum.xda-developers.com/show...&postcount=318
if you just rename the folder it should work. I'm using caulkin's latest and it has the WM7 titanium so it's double the size as the normal 6.5. The Hero_allres didn't work got an error message when installing.
the JML_today_hero is off I only have the bottom half and I believe it's due to the difference with WM7 titanium theme.