[kh99]

If you take out the <if> completely do you see ads?

Edit: oh, well you said guests are still seeing them so I guess it won't make any difference. I really can't think what it could be. I guess it could be that there's an error somewhere in that template so that it's not saving the changed version (but normally it will tell you there's an error when you save it).

This may be a stupid question, but are you sure you're working on the right site (and not a test site or something)? I guess you'd know that since the other pages worked.

There is a post cache but I'm pretty sure it only caches the actual post text. If you want you could try truncating the postparsed table in the database. Edit: no, that can't be it - it certainly doesn't cache the rendered postbit template.