you can try opening a terminal window and switching to root.
the all you have to do is:
if installing: rpm -ivh typenamehere.rpm
if upgrading existing RPMs: rpm -Uvh typenamehere.rpm
if, of course, you have previously downloaded the RPMs.

--
Mitja

Andrew Stallard wrote:
> Is there a quick and easy way to install .rpm files using the GUI? (I jus
> t
> installed the Sci-Linux 4.3 GUI on my machine.) 
>
> In addition, since all of my linux books focus on text-based interface, i
> s
> there a way to access the command prompt in light of the fact the GUI is
> already installed?
>
> Thank You for Responding:
>
> Andrew Stallard
>