[Spinball]

I am investigating replacing my banner serving scripts integrated with vBulletin with PHPAdsNew.
My script has a lot of features (geotargetting, limited impressions per ip, advertiser updatable adverts) but I'm wondering whether PHPAdsNew will do the job better.

I have read the instructions at the top of this thread but I don't think it will work in my case. Unless I am missing something.
I serve 3 or 4 banners on each page :

Very top Run of Site 468x60 which is invoked from the page header,
Forum-specific header
Forum-specific skyscraper (not shown in thread view when there is only 1 post)
Forum-specific footer.

I invoke my ad serving script with a zoneid.
There are some 'custom' zones like 'ROST' for run of site 468x60 top banner or 'ROSASIANT' for the Run of Site Asian DVD reviews top banner, but most banners are in specific forums.
The zone id is made up of the forum id number (originally generated and used by vbulletin) and a letter - H,S or F for header, skyscraper or footer.
It's called from FORUMDISPLAY and SHOWTHREAD php scripts and then displayed in the FORUMDISPLAY and SHOWTHREAD templates.
The skyscraper invocation only happens when there is more than one post in a thread as otherwise the page looks rubbish with a large skyscraper on the right.

Given that I need the forum id and in showthread the number of posts, I don't see how putting the invocation code in the headinclude script is going to work.

Please help.