CentOS yum install problem

[David Suna]

I am using CentOS for the first time on a GoDaddy Virtual Private 
Server. Yesterday I was able to install packages without a problem. 
Today, for some reason, any package I try to search for I get a No 
Matches found error. And any package I try to install I get No package 
<package name> available.

I am a Debian / Ubuntu user so I am a little lost in the CentOS - yum 
world. GoDaddy support is completely worthless. I have tried searching 
on Google but have not found what I am looking for.

Can anyone give me a pointer to how I can solve this problem?

Thanks,


-- 
David Suna
david at davidsconsultants.com