I did this friday nite but was too lazy to post then
I do like LastCrusader so it will be on in future, here's how to fix that issue. Bookmark this post!

One of two ways, depends where you have that file.

First see if you have the file ChicoRuinsPack.utx in your UnrealTournament/Textures folder. If you do, rename it to ChicoRuinsPack.utx.MyOriginal. Then join the server and it will download my version into your cache.

If you did not see the file above, then it is in your cache. Go to your UnrealTournament/Cache folder. In there you will find a file called cache.ini, open it up. Search for the text ChicoRuinsPack.utx. You are going to need to delete that line but before you do, take note of the funky characters that appear to the left of it. Those are going to be a file name. For example, you found the line and it looks something like this:

23A349184E5711E295233BAFF3D8BF1F=ChicoRuinsPack.utx

(but you will have your own numbers on the left). This means you will have a file called 23A349184E5711E295233BAFF3D8BF1F.uxx in the UnrealTournament/Cache folder. Delete that file. Now you can remove that single line from the cache.ini file.

Now join the server and it will download the file into your cache.

Piece of cake!

Hi Helen sorry for a redundant post but i have triple checked my cache folder, i have redone the ChicoRuinsPack.original before, but this time i dont see it @ all, i did a fresh install of Windows 8.1 and whatnot and just now i had to quit playing, if i could find the file in the cache it wouldn't be any problem im well familier with that renaming practice, i'll see if copying that specific file from my UT_99_Backup folder solves the issue. 

I believe my prob should be fixed now, will try testing it today to be sure, previous copy added in and changes made, no worries Helen