OK, I'm going to suggest Peppermint 3 .. Peppermint 5 is thee current version but 3 will be supported till 2017 and will be lighter on system resources than 5
In the best "here's one I made earlier" fashion, a tutorial for installing Peppermint Three on an AA1 can be found here:http://linuxforums.org.uk/index.php?topic=10313.0
I'd suggest you get the respin from my server rather than the original earlier version from the Peppermint website .. the version on my server is an original official Peppermint ISO (I'm a member of team peppermint), for some reason Kendall chose to put the earlier version on the website, but the respin was better (it included all the bug fixes).
Any questions, or if you need assistance please post them in the Peppermint Three Tutorial page linked above, and I'll be happy to help.
If you'd prefer to try Peppermint 5, there's a tutorial for that here:http://linuxforums.org.uk/index.php?topic=11987.0
but I think Peppermint 5 may be a little heavy without a RAM upgrade