Sence LimeWire puts out updates on a regular basus it should have auto-updates insted of having a popup like kazaa have a field like where the ad was saying "A new version of LimeWire is out do you wish to download it?" when you click yes it will download it and restart youer client (not changin your prefs or movieing your shared folder or youer client) Maybe it could download it form outer LimeWire users it would slow down the network but it would reduce trafic to your site. But if you did this than more limewire usres would have a new version thus improving the helfh of gnutella.

Peace
Munchables