you can check under Program Files LANDesk \ LANDesk Service Desk ; LANDesk \ LANDesk Applications
The KnowledgeResults.CSS is in C:/Program Files(x86)/LANDesk/LANDesk ServiceDesk on my app server. Is this one of them that you're looking for? It's the only one we've touched but I see there a few other ones in there
must have been replying at the same time!!
Did you you ever find the CSS? If you did, I'd be very interested to know!