The default setting in Def_Mof does not collect hotfix installation dates from Windows 2008 servers so you can't use SCCM to query add/remove programs table to get a installation date when SUP is giving strange dates.
So I searched and modified a powerful wmic command for this:
wmic /node:@serverlist.txt /output:c:\temp\qfe_output.csv QFE where hotfixid="KB2655992" GET CSName,HotFixID,InstalledON /format:csv
1. Put all servers into the "serverlist.txt" file.
2. Run the command as a user who gets local admin rights to all systems in the serverlist.txt.
3. Outpul is created as CSV but you can change the formal to HTML by changing to: "/format:html"
Worked very well for me!