Just copy the CustomEmoticons and Usertile folders for your CE's and DP's
and Backgrounds if you want your backgrounds too.
History is could get copied but i think that's not really smart (wont affect anything tough)
To be short:
copy everything except the listcache file
I haven't been active here in ages.
If you're wondering who i am, read my reputations. I used to make plugins, skins and spam the IRC channels here back in the good old days before Windows Live.