I was in Aimoo yesterday and yes you can copy and paste the backgrounds for your pages, but the look all funny cause they end up being so long instead of filling the page like they do here in the group, but at least we can use them. I tried copying and pasting a page from here and I can't delete it now...lol Its doesn't give you an option to delete. So will have to play around a bit more with that.
I hear that Aimoo will not move you over unless you have more than 5 members and have 30 posts I guess a day. Thats what I read in CF. So not sure on that one.
Anyhow, not real sure on that group yet...all I know its more complicating than Yuku is.
Hugs Lila