Re: TigerVNC Viewer
Keep in mind, VNC is insecure. It is (probably) reasonable on a LAN, but not over the internet.
For a connection over the internet I highly advise ssh (ssh -X). If you need an entire desktop, which is unlikely (forward gnome-panel), you should look at FreeNX, OpenVPN, or tunneling VNC over SSH.
If it is not broken, tweak it... If you break Fedora you get to keep both pieces :p