imlib = 1.8 is needed by imlib-cfgeditor-1.8-5 (fwd)

["this is Zhao, Lenny" <lzhao uoguelph ca>]

Hi there, I am trying to install "gnome"

I gotta this message when it starts to install:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
GNOME install failed with the following error from rpm:
failed dependencies: 
imlib = 1.8 is needed by imlib-cfgeditor-1.8-5
++++++++++++++++++++++++++++++++++++++++++++++++++++++++

I use RedHat 5.2, I tried to reinstall "imlib" package, RPM won't do it
bcs it is already exist(of course), All imlib(I think there are three of 
them) are there, so it is still not working. 

Please, someone help me!!!

thank you in advance