Trigger for Getting Info from Quicksilver Selection

[Unifier]

(Mac OS 10.4.11, Quicksilver B54)

Hi all.  I was hoping to use AppleScript to make a hotkey trigger that
would enable me to invoke Quicksilver, type the name of what I'm
looking for and press command + i to get info just as I would in
Finder.

Below was my best unsuccessful attempt at this:

on open theItem
        set thePath to POSIX file of theItem
        tell application "Finder" to open information window of item thePath
end open

Is there any way I can pull this off?  Thanks in advanced!