Downloaded the file:
Dimdim_installer_centos4.5_32bit_online.run
Extracted the "scripts" folder to analyse missing files.
Attached herewith are the script files zipped.
The repo is stated to be in:
http://stage.dimdim.com/Build/dimdimrepository/
It gets redirected to https://.....
The repository seems to have been removed. The script set has references to the actual packages.
Original scripts for CentOS 45 DimDim Install