Ok, I used to work software support and heard a lot of 'sure you did' stories but here is what happened to me.
Downloaded LimeWire 2.2.1 and had the same problem with no results in the search window. Windows 98, accepted all the defaults during install.
I uninstalled 2.2.1 and was searching for an older version (using this forum) when I came across the display.props file. I downloaded it, removed the txt extension and put it in the folder where I had the LimeWire installation program (c:\window\desktop\tempinstall\gnutella\limewire). The installation went the same as before and I can see the file names in the search window now. Go figure!
Thanx for posting the display.props file.