once you have gone to easyurpmi and configured your package sources installing a package is as easy as opening a console, then:
[list=1][*]su root[*]urpmi "package name"[/list=1]
if the package is available from one of the sources you configured at easyurpmi then it
and all its dependencies will be installed in one easy step. if the package isn't available you can google for it or look here
http://rpmfind.net/linux/RPM/ . then try installing it using the instructions provided in the post mentioned above.
of course you should also read all relevant man pages; tar, rpm,etc.