Shame it didn't work. I have converted it for you but I'm not sure it will work because it saved it for a K610 even though I told it to save for your model. I hope it just means they are compatible phones. It may work anyway.
It's bigger filesize cos I worked out how to put ringtone and text message sounds in. You get Diablo laughing for texts and Tristram music for phone calls. If anyone wants the w810i one with sounds let me know and I'll link to that as I am remaking it with the sounds this time.
It's basically the same program for all models of phone, you have to select the device in one of the program tabs BEFORE making a theme cos otherwise it makes one for some default model which is annoying.
PS. They have a lot of really nice phone themes and stuff free on the site too.