It's going to add 3. However it's only on the forumhome, I haven't noticed a performance hit on my major site at all from it. I primarily wrote this becuse my board is geared towards attachments and I thought it would be handy for everyone to see.

Nice hack :)
ericgtr can you please guide me how to put these stats somewhere else like in header location??

Actually i am using a custom skin and want to add this in somehere in header :)

Thanks for your help ericgtr

Basically, you can put the code in between the:
<!-- Begin Total Attachments -->

<!-- /End Total Attachments -->
anywhere you want. Say you want it at the top of your forums, you can just put it under $navbar for instance.

wow brilliant this was exactly what ive been looking for *installed*

Works on 3.6.8.

BTW, the phrase "Attachment Statistics" was missing ;)

Ok, ive got it working on vBulletin 3.7 Beta 4