G'day. I understand why you're having difficulty figuring out where to post this question. Looking at this topic from our perspective, it's just as difficult figuring out where to properly classify this question, too.
It's difficult to classify where this topic should belong because it's not really about providing feedback on the
Kunena product or about suggestions for this website (which is the purpose of the
General Talk about Kunena category). It's difficult to classify this topic because it discusses K 1.6 and, as we all know, we've moved on from K 1.6 a long time ago. This is why we don't "entertain" (for want of a better word) questions about K 1.6. Our advice is consistently, if there is no specific reason to the contrary, upgrade to K 1.7.2 in the first instance (to see if this resolves your problem) ... making sure, of course, that you have taken all reasonable precautions as outlined in
K 1.6 and K 1.7 Upgrade Guide
.
I think we should also bring you up-to-date on some terminology changes since you may have last visited this site. We prefer to use the terms
Sections, Categories and sub-Categories
these days (as we have been using them for the past two years) instead of the older terms "categories", "forums" and "sub-forums" (or even "child-boards") because those older terms confused everyone (see
Standard (consistent) Terminology?!
).
You may be able to find what categories you have defined, if you could restore your old website from a working backup, using the
Kunena Category Manager. You could also look at the table kunena_categories, assuming that you salvaged a copy of that table before you destroyed your old website. I don't know what else to advise in your case.
I will put this topic in the
Miscellaneous, off-topic and general Joomla category simply because, as you wrote, "it really doesn't fit anywhere else that I could find."