Sweeper,

The gnutella.net file is within the folder named LimeWire - which is hidden by default. So you'll need to make sure that you show hidden files & folders, before you go looking for that LimeWire folder. If you can find the LimeWire folder but there's no gnutella.net (or gnutella) file there at all, just download one & add it to the LimeWire folder. A few people have said that they never had a gnutella.net file to start with!

If nothing in that connection help thread works, you really need to post all of your system details. Like it says in the thread. And like it says in the forum rules. Otherwise we can't help you.