I recommend taking a SEO to rewrite the URLS to something the search engines can read more easily to get you higher into the google/yahoo/altavista and so on results.
I use it myself too and its really great. I recommend vRewrite (owner of this vbulletin probably knows its possible to download at
www.vbulletin.org)
vBSEO is a paid version but does the exact same thing as vRewrite, which is free. so... dont waste your money on vBSEO.
as for the quickreply, I recommend you to put the "Message posting and editing" settings to this:
Its annoying to click the small "reply" button next to the "quote" button everytime you want to reply. The less people use the normal reply button, the less your servers will be hit. clicking the "reply" button (normal reply, not the one to use quickreply) uses 11 queries in your database + loading new page + bandwidth, so yeah.
- edit
did you use the vb image resizer mod to resize the image? if so I might download it too
its good.