What do you use for url rewriting of vBulletin forums? If you use vbSEO, do you think it is worth to pay another ~200$ for that module?
Vbulletin have a hack for this purpose. I have installed a mod_rewrite hack on one of my client's website. You can try member area to find this hack.
Zonits seo still generates session urls. So far I have only seen vbseo work well with VB, but it has its own problems increasing server loads drastically.
If you have high traffic, along with large no. of forum topics running successfully, then its surely worth invest 200$ in it. Better traffic will lead to more profit and hence shud pay u back
I have 6 vBulletin forums. 3 have vBSEO installed and those 3 have more pages indexed in Google and higher traffic. If that tells you anything... I recommend vBSEO for sure. The reason I don't have 6 licenses is because I wanted to see how the non vBSEO forums did. I'll be purchasing more licenses soon however..