Setting a new forum, vbulletin 3, vbulletin 4 or vbulletin 5?

I want the site to load in less then 15 seconds so... na :p

 

I test in local and online host (not live site) and receive less than 3s load. vb5

 

vBulletin 3

 

4.2 it's stable and works with the latest PHP

 

Never test with PHP 5.4+. Does it work either?

 

Dunno I Thought 5.3 was the latest stable branch.

 

The dumb was for 3.6.8, I'm currently upgrading it to 4.2.x pl whatever is the latest

It's 770,000 post

I may move everything under the "lounge" to this new setup as well, but that may wait a few days.

 

Well I'm giving up on the vb install, I'm just going to jump it right to xf..lol

 

Thats the price of having worked with XF. Even though vb3/4 is good, its outdated and that gets annoying.
Are you getting the installer conflict with PHP5.4+ ?