whats happens when you run the install? where does it crap out? Make sure you have &redhat 7.3 server install& (not workstation or custom) and also make sure you are connected to the internet. if you are downloading this from a ftp server make sure you use binary mode also or the installer will crap out.
This my step by step
1. Login Redhat7.3 xwindow modm
2. open type command window
3. cd /home
4. wget http://...... &&& to download
5. sh cpanel.......sea &&& just sparkle one time for my monitor,
..... no effect