To browse a host, you will need to type in this string into the LimeWire Search field on the Search Tab. Using the Browse Host feature for reference, the syntax is as follows:

"files on " + "IP Address" + ":" + "Port Number"

This may look weird, but yours should look like this when you try it. Make sure that you pay very careful attention to spacing.

files on 123.456.78.901:6346

This is just how the Browse Host feature does it. But like I said, I haven't been able to successfully browse any host with LimeWire. Try it out and tell us if it worked, ok? :-)