I can make a theme but I don't have the phone to test it in, bass if you want you can easily do a theme, here's how:
-Find a theme you like, familiarize yourself with ever aspect of it. (try to find an orange one to make things easier.
-Download the theme file to your PC, open it with winzip/rar and check out the files, you will see a collection of images, every image does something in ur phone, one is the background the other is for menu... since you familiarized yourself with the theme you should know where each one goes, pick an image to replace it, make it the same name, the same width and height and the same file type (eza the original blabla.png the new one will also be blabla.png) replace the old files with the new ones.
-in the archive there is an xml file don't mess with it unless you know what you are doing, with it you can change the file names the font colors... if you don't know how to edit those stuff just choose an orange theme and the fonts will be allready matching
btw: you can edit the xml file in notepad
PS: save the archive with the same extension of the theme (.nth)
Hope this helped