I'm not sure if this is the right section, sorry if it isn't!

I've been making themes in iDesigner recently, and none of them seem to be working on my iPad. The themes show up in winterboard but the only thing that actually shows up when I select the them is the badge, none of the icons or the backgrounds appear at all. I was using the dimensions that iDesigner gives me, I was wondering if i had to change the dimensions in order for it to work with the iPad, or if there was something to select within the program to make it an iPad theme instead of an iPhone/Pod theme?

If anyone can help me out that would be great, or if theres a better program specifically for the iPad that anyone knows of that would be great.