is the $v variable in vbsitemap-multi.php set to the following (since you run 3.5.0)?
$v='3.5';0;

I got confused i used to have it like so;

chang it to this:

Installed and worked Excellent thanks T2Dman.

For other people out there this hack is excellent and T2D also offers some tips on upgrades here: http://forum.time2dine.co.nz/seo-vbu...-5-a-2460.html

T2DMan usually releases decent hacks/mods/plugins and has good infromation, yet this hack/mod in its current state, is simply not worth having. I'll have to stay away from this, until an update is in place.

It's working great for me (vb3.5RC3)

I was able to install and run this hack within 5 minutes and it did everything it was suposed to. Im still waiting on conformation from google that the site was indexed however I for one really recomend this hack.

Yea, and as we will notice, you both are using the RC3- I wonder why so many people don't upgrade to the final "GOLD" release.... For some reason, it doesn't appear to work with the Gold release.

Heh sorry im not using RC3 on this site, My main one is RC3 though. I did run into a proublem with the indes that this file created. appearently google didnt like the second timestamp that this hack made. Im going to be looking into why the syntax is wrong and get back to you.

*edit*

The only diffrence I have found between T2Dman's sitemap index and google's example is the second date. Appearently google only wants a year-month-day and not a YYYY-MM-DDTHH:MM:SS-HH:MM:SS

Again I have resubmited this and im waiting to see if google likes it or not.

Google has been downloading the XML file from my site for the last 2 weeks. It seems like they download the file every 12 hours for about 5 days straight, then take a couple of days off, then go back to the routine again. So far, I'm seeing double the number of indexed page of my website on google. I'm not sure if it's because of this mod or my other submissions.

I think you misunderstand what this hack actually does :)