Yes, I added it to the index. I have several other ads included in different places in the index and they're showing up fine.
I switched back to my Atahualpa 3.7.3 and the ads showed up again with no problem.
When I compared the index files for the 3.7.3 and the 3.7.10, that PHP and ad coding appears to be exactly the same and located in the same place in the index file, so I'm not sure why it would show up in one version of the theme and not in the other.
I just did a few more tests:
- I placed the ad code directly in the index.php without the php is_category protocol and the ad showed up fine.
- Then I re-added the php is_category protocol and replaced the ad with the word "test" but the word test did not show up on the page.
- Then I tried the word "test" with the postcount=3 and removed the OR postcount=6 and the word test still did not show up on the page.
To me, this suggests that something is wrong with the PHP statement except that the same statement worked fine with Atahualpa 3.7.3.
Could it be the placement in the index file? It's the same place where I had it in the 3.7.3 index but other things have changed in that file.
If none of this rings a bell, can I send you both index files so you can see if I've missed something?