As far as I can tell you can't search for objects from SSMS, but you could in Query Analyzer. (Press F4 when in QA to bring it up)
However you can run a script like this:
sp_msforeachdb @command1='select ''(?)'' as [dbname] , [name] as [ObjectFoundName]from sysobjects where [name] like ''sysfiles1'''
just change sysfiles1 to the object you're searching for. This will search every database on the server and will work for any object.
Hope that helps.
Chris.