Invalid file format

Make sure that both file have the same exact name and also make sure you are uploading each on its corresponding window. eg. .zip file in the upload zip window and .jpg (preview) in the upload preview window.

Ok thanx Apocalypse i will try that P.S glad to see you did not leave this site like your work .

I hope it works
Thankx. I started off in this site and have learn and share a great deal in it. You'll see me here for a long time

P.S. Keep an eye out over there ---->>

They don't need to have the same name................. and your zip can have any format within.  But do make sure you're putting them in the correct fields. 

Koasati, maybe It was a server error, but it happened to me twice. Once with my wallpaper Hard_Drive. One file had the name with the underscore (_) and the other didnt, and it gave me a 'Invalid file format' the second time was with PointOfView, one file had no spaces the other had spaces and I got the same error. After I named them the same, it worked

Don't know why that happened to you A_67, but they definitely don't have to have the same name. A lot of people upload "nameofskin.zip" with "preview.jpg", and it works. Of course the next upload that person has, overwrites the first preview, and they have the same preview image for both uploads.
I usually always name mine, nameofskin.zip, and nameofskin_ss.jpg.

I'll keep that in mind Koasati. Thankx for the info
But if I get an error again, I will give you an earfull >

Still no luck image preview "platinum.jpg" and zip file "platinum" still get invalid file will try again tommorow thanx all for the help both in the correct field.

Might be a glitch on the server. I hope you get the files uploaded, now Im curious to see it

Yeah it must be a server glitch...When I click on the 'Upload' link I can't even get to the upload page