It looks as though the MacPorts version of Xfce 4 is out of date (well, it's up-to-date for the 4.2.x branch, but not for the current stable 4.4.x branch.) I took some time and updated xfce to 4.4.1. If anyone would be willing to look it over and give any pointers to things that might need cleaned up it'd be appreciated (exo comes to mind.) You'll need to remove the following before extracting the attachment:
x11/Terminal
x11/*xfce*
x11/xfwm*
x11/xfdesktop
x11/xfprint
devel/*xfce*

There may be a few other

I arranged these into their own xfce group to keep all the xfce programs/libraries in one directory (similar to how gnome/kde/zope/etc are grouped.)  This made the most sense to me so I could at least easily find them when working on them.

Just a few notes, very little was actually used from the previous ports, there's bit and pieces and I wasn't thinking when I was  doing some cleaning up  that I should have  probably left the original contributor/maintainer's name there (even though most were nomaintainer@macports.org) I think xfprint was one  of the only ones to still have a maintainer's name included with it.

Normally I don't cross post like this, but it's somewhat relevant to both.