Luke, Der Robe & others
Have a look at the link to the rpm command, it's quite informative.
http://www.oreilly.com/catalog/linuxnut3/chapter/ch05.html#LN.PKG.DIV.RPMI was a beginner not so long ago and got caught with some of the simple things, so to help other beginners.......
The commonly used rpm command variations are:
rpm -ivh rpmname
rpm -Uvh rpmname
rpm -e rpmname (without number or suffix)
eg to instal an rpm called e-smith-ezmlm-web-1.1.1-04.noarch.rpm
do
rpm -ivh e-smith-ezmlm-web-1.1.1-04.noarch.rpm
to update an already installed rpm say e-smith-ezmlm-web-1.1.1-04.noarch.rpm with e-smith-ezmlm-web-1.1.1-05.noarch.rpm
do rpm -Uvh e-smith-ezmlm-web-1.1.1-05.noarch.rpm
to uninstal an rpm called e-smith-ezmlm-web-1.1.1-05.noarch.rpm
do
rpm -e e-smith-ezmlm-web
Hope this is of use
Regards
Ray Mitchell