Here's a SliTaz existing flavor (core) with Xfce Desktop, some Xfce tools, Firefox and mercurial. Please download and give me some feedback. Sorry about the Sendspace links. I will update the links ASAP.
Box.net is a good host for files and it has no weird requirements. You could also try using http://pizza.slitaz.org to build an official flavour using xfce.