Is there some simple way to convert an icon I have on my Mac, to a .png file that can be used on the touch? Tried putting it into my theme manually using Cyber Duck, but got some error, and basically didn't transfer. I converted the icon to a .png file, but maybe it was just too big...
Yeah I've been there. The way I had to do it unfortunately was use Axilas Icon Compaser (or something along those lines) to open the .icn file in XP and then save it as a standard .ico Windows icon file and then open that new icon in Paint.NET (also Windows only), resize it and save it as a PNG. That was a few week ago so things may have changed but that's the way I've been doing it. Luckily I have Fusion with XP :/
You may also want to google the '<programme name> icon' such as 'iMovie icon' and it may turn up some results that are PNGs.