ProfitUI adds some image files but otherwise while it skins some default images you can also do without them and use the default UI's image files instead. That's also why it should be compatible with any skin out there. When you looking into it if you find a bug in my skins please let me know. I know a few of my XML files have some glitches in the titlebar area, not sure when I messed that up but I never fixed it.
Regarding your author status I thought as well that it was automatic but maybe it isn't. I let Dolby know, he'll be back Monday. As soon as you have that you can create a portal yourself by going to the portal listing and clicking a link there I think (has been a while...).