So, I don't own a 512 head and I need to take some in game pics of a headtexture to sell. I will only use it for like 1 minute and I will send it back. Sorry if this doesn't go here.

You can test the head texture in gimp, Photoshop or anything used for making art.

Sent. You could also convert the flat of the head to .tga format, and apply it to Uke in your custom folder.

This is the converter that i use. Convert it to .tga and, as Toaster said, put in in custom folder. Then rename the file to Head.tga

Thank you guys.

Toaster, cheers. Using it now and I will return it in like 5 minutes.

or... y'know... just save it as a fucking .tga in photoshop or gimp...

I don't have those softwares and I am not downloading them just for this. It's too late now anyways.
Thanks Toast, sent it back.