right i've made a fix for both 32bit and 64bit to add mp3tag the the right click menu:
32bit:
http://rapidshare.com/files/303878639/mp3tag_fix.reg
64bit:
http://rapidshare.com/files/304246473/mp3tag_fix_64bit.reg
please note if you've installed mp3tag into another location other then default you'll need to open the file in notepad and change it