To query the urpmi database, there is command urpmq which has a separate man page.
Are you using konqueror as your file browser? man:/ in the location bar gets you the man index. man:/u gets you a list of man pages dealing with commands that begin with the letter u.
I've found that any link has to be opened in a new tab - clicking on a link gets you a "save as" dialogue.
EDIT: Just came across a thread
Using 'Urpmi' And 'RPM' Effectively in another forum.