How do I change the URL on my member's profile page

[karlm]

you need an htaccess file, and you need to amend a few links in the vbulletin templates.

e.g. I've got it set so when a user clicks my avatar (or any members) it links to the profile using their membername, obviously, that's just one element - there are a lot more.

take a look at my sig. (antimisandry) to see it in action. if that's what you'd like, let me know and i'll try help you sort it out.