How do I install and update RPMs?
To install RPM packages on a RedHat based system like SME Server, you will need to know how to use the command line. These are the most used ones:
'man rpm' will show the man page of the rpm Note: to have the pages of handbook, you will have to download the RPM man-1.5i2-6.i386.rpm and install it with the following commands:
'rpm -ivh /path/to/the/file.rpm' will (i)nstall file.rpm with (v)erbose (detailed) feedback by posting (h)ashes during the installation.
'rpm -Uvh /path/to the/file.rpm' will (U)pgrade (update) the package, with the same options used previously.
'rpm -e file.rpm' will (e)rase (uninstall) the package
In certain cases, the --nodeps option will also allow you to install a RPM by ignoring some dependences that are not present on the server.
i hope this is of some help
greetz HomePlayer
p.s thanks Reinhold i found this whit the search button and "see more results"

from this link
http://no.longer.valid/phpwiki/index.php?pagename=AdministrationFAQ#rpm