Thanks for your positive comments mr reaper.
OK, considering only the category:
Top: Regional: Europe: United Kingdom: Business and Economy: Industries: Telecommunications: Mobile: Services: Ring Tones, Graphics and Logos
Having looked, I believe each site within this cat to have only unique entries.
1) adifferentlogo.com indeed has about 5 mirrors, but only one is listed in this category. Just because a site has mirrors, does not mean it should be entirely excluded, IMHO. It also doesn't matter if one of the other mirrors shows up somewhere else in the directory, as the site is entitled to multiple listings in its own right anyway.
2) findatone.co.uk also has some mirrors and near mirrors. However, again, I cannot see any of the mirrors listed in this category.
3) ringtonesnstuff.co.uk vs mobileclubber.com: I agree with you here, but it is easy to see how this could slip through the net. I am sure the editors will remove this in due course.
4) tonemania.com appears to have some mirrors too, none of which appear to be listed.
The other ringtone cat I cannot comment on as I have looked at this one only.
I am sure you will appreciate how difficult it is for volunteer editors who may have 1000+ sites to look after, to constantly cross reference 80+ sites per category. Let us also not forget the tricks that the spammers use in order to get in, including constructing an entire site solely for the purpose of getting a listing based on something unique, then changing it later for their affiliate site. I believe this was the case for a couple of the sites you mentioned earlier.