Sorry for the non-response, my 'net access has been down most of the last week and won't be fixed until tomorrow.
Most modifications are relatively easy to install if you have a good text editor (I use ultraedit -
www.ultraedit.com ) and are familiar with copy/paste type instructions. I can help more when I get back later this week. Gizmo can as well

.mhx mods never really took off for the threads 6 series, the program itself was written more for the classic series.