PROBLEM IN BRIEF:
Blank "Admin>Configuration>Abbington Mega" page. (i.e., just the TITLE VALUE ACTION headings).

ME:
Retired computer tech, mid-60s

ZC VERSION:
1.5.1 (vanilla. No addons, etc.)

TEMPLATE:
Abbington Mega v3.1 (also vanilla. Dated 24 APR 13)

TEMPLATE CHANGES I HAVE MADE:
Few, decorative (images), and HTML/CSS

USER SKILL LEVEL:
Weak in PHP, only 30 short/long days with ZC, but can learn quickly

ATTEMPTS TO RESOLVE:
Tried several SQL patches and patch ideas (after first removing references to Abb Mega from configuration and configuration table, as Anne suggested):
Tried db prefix solution
Tried the "SELECT @AbbingtonMegaconfig:=configuration_group_id" patch

ERROR LOG INFO:
Various, usually PHP 1146s and 1602s. I'd have to try a suggestion to give you a precise error set.

ETC:
As far as results, the best I have achieved is seeing "Abbington Mega" on the page instead of no title.

A number of others seem to have experienced this problem, and it's possible that I missed some FAQ or definitive solution. I've read posts until I start to remember users like kkjoseph, digispro, and ezivape by heart. But trying to read through the better part of 1000 posts at my age is exhausting. (Speaking of which ... hey, Zen Cart site guys ... why only single-tiered, linear support threads for templates? The Vbulletin search feature is historically weak, and this makes finding answers very difficult.)

The help of any experienced PHP or Zen person who can shed light or offer ideas would be much appreciated. I'm the "teach a man to fish" type, so please don't feel limited on words; Brevity is the father of Confusion's child, in my book.

Thank you,

Joe Bones