enterprise 3 install/upgrade question

[Tony Canning]

I have been asked to maintain and support a Dell Poweredge 2550 running 
Redhat  Enterprise 3.  It is a file server with 2 main applications, 
journyx & phplist.  The IT staff who set it up are no longer with our 
company and there is virtually no documentation.  The rest of our 
network is a mixture of solaris and W2K.

My problem is that it appears to be a very minimal install, with no 
GUIs, applications, browser, tools etc.  I would like to get something 
like KDE running and also install all the tools and packages and updates 
to make it easy to manage.  My immediate goal is to make journyx 
accessible to a new W2K+3 Active Directory system.

I have the original installation package (9 CDs) but if I boot from the 
CD I don't see any option to add packages, and the process aborts when 
it attempts to create a new root partition.  I cannot risk changing any  
system or application files because I have no way or restoring the 
current setup at the moment.

any advice gratefully appreciated

Tony Canning