If it's Xandros, which as a 4G it probably is, I'd personally install something else on it, as I did not get on with Xandros at all, finding it poorly maintained and out of date.
As a 4G it's fairly old to my recollection you may have some issues with Ubuntu requiring too much in the way of system resources as the early EEE's were severely lacking in power and the netbook version is no lighter than the normal version, it just has pretty optimisations for a smaller screen. ^^
Have a look at some more lightweight distros, a couple that come to mind are Crunchbang (my personal favourite) or one of the llighter Linux Mint's, either XFCE or Fluxbox. Crunchbang might take more getting used to, but from what I've seen of Mint XFCE it looks as point and click and as ready to go as normal Ubuntu.
That said I've not used Mint at all, so have no personal experiences, just what I've seen around on t'web.