Hi all

First off, great forum! I love modding stuff, and love seeing how other people make things better.

Can someone please tell me what the following hack are (being used on this forum)

1. "LinkBack" as used when in a post. Where do I get this hack?
2. Extra fields under post, as used in the Showcase section, on http://www.vbhackers.com/f20/ - I see when you make a new post, you need to choose some options from a dropdown, and then type the URL. How do I add those fields, and how do I display them? Can I display some fields from the user's profile?
3. Navigation like on top. I love the navigation being used, with the "double layered" menu.
4. Postbit ( I think? ) options as used on this site, where is shows the user's activity, longlivety (still trying to figure this one out), today and posts

1. vBSEO - vBulletin SEO Forums.
2. Extra Thread Fields (/Pro) - SiteResort. I suggest using GARS though - The vB Geek.
3. That's just some simple html.
4. WetWired's activity hack - Activity Modification - vBulletin.org Forum.