Need help installing UI mod

[Hollas]

Hope you can help me with this one.

Since having to reinstall WoW after unrelated computer problems, I've been unable to install any UI mod. They had worked fine for me before and I can't seem to work out what the problem is.

The path is: C:\Program Files\World of Warcraft\Interface\AddOns\74-20060822-218-Atlas_v1_8_1

But doesn't work for these either .....
C:\Program Files\World of Warcraft\Interface\AddOns\55-20060824-226-Titan_v2_20
or C:\Program Files\World of Warcraft\Interface\AddOns\1160319188Panza4123
or C:\Program Files\World of Warcraft\Interface\AddOns\71-20060403-134-Decursive_1_9_4

I've checked that I don't have duplicate WoW directories and have tried deleting the WTF and WDB folders without success.

Hope someone can help. Thanks in advance.

Hollas