Just a quick howto about installing a Citrix client on Fedora, because I didn't find a clear explanation using Google.
The tricy part about installing ‘Citrix Receiver’ on Fedora, is that you need openmotif. In order to install openmotif, you have to enable the rpmfusion software repository. (See http://rpmfusion.org/Configuration)
Then you install opnemotif:
yum install openmotif
Finally, you download and install the i386-rpm of the citrix receiver from this page: http://www.citrix.com/English/SS/downloads/details.asp?downloadID=3323&productID=-1