With all due respect sir...
I did a search and although I'm no pro and I am new here, that was an update to your topic link in the post you locked. The information there is out dated for the 8800 series and I did not know where else to post it. I hope you and any other 8800 users find that useful as those are complete instructions for version 4.2.66 (cut and paste for VZW users).
http://www.blackberryforums.com/gene...or-themes.html
Further more... in that topic i found this statement rather harsh... "This thread is meant for people who know what they are doing, plain and simple." But then again who am I to speak up. I just wanted to post an easy way (for us noobs) without having to go thru all of the steps in previous instructions here, ie;
3 - Delete the Vendor.xml file from C:\Program Files\Common Files\Research In Motion\AppLoader (this needs to be done AFTER Step 2, although that should not need to be stated).
4 - Rename the BlackBerry.alx file located in your Installation Path (see above for full path name; varies for each handheld software installation).
5 - Download and extract the BlackBerry.alx file from the associated ZIP file for your handheld. This is listed above as BlackBerry.alx Download.
I just simply renamed the vendor ID's and thats that. We do not need to delete the vendor.xml anymore at least with the 8800 (not sure why we had to). Being new to the 8800 as we all are your instructions imply this needs to be done. This worked with the 8800 AT&T as well as the 8830 VZW with out a flaw.
Sorry if I ruffled any feathers, just trying to post some user friendly info