My bad, got my own n00b wires crossed there...
I had to do a full reinstall last week and subsequently tried putting all my old mods back in in one go. I'd been previously using the version of CMMOS that came with my CMBO CD (3.0 IIRC) with no problems but I had a brief look for new mods and found the new CMMOS with its new rule sets - I started to go a bit mod-crazy!
It was just installing these rule-sets that confused me a bit, the way in which one zip file contains all of the rulesets as other zip files within it. There must have been an easy way to do it but because I wasn't used to this (and I couldn't find anything helpful about installing Rule Sets, everything I read just said "Install the Rule Sets and then..."), I just went at it hammer and tongs, making much work for myself in the process. I shouldn't have used the word 'tweaking', rather 'RTFM first, then you won't have to make changes'.
They all work now though, and for that I'm mighty grateful. I'm not really into experimenting with mods all the time... it's good to try out a few but a keeper's a keeper. Otherwise you'd spend all your time observing the grass and not smoking the enemy. At least I *think* that's the right order...
Sorry again for the misunderstanding
-Moog