Well, all the RH-based distros (RH, FC, MDK) commonly
have the works on their CDs ... if you can't find them in
the package manager I'd recommend having a look on
http://rpmfind.net and search for them there ...
[edit]
The package you want to look for for the vga things
is most likely called something like libsvga or svgalib.
As for liblix-gtk-2.3 ... you sure you have that name
right? I've never come across anything the like.
[/edit]
Cheers,
Tink