Hello,
From what you've sent me, I'm guessing that your problem is that there isn't a field named "URL" in your DataSource, and the code as it is expects it.
I suggest that you modify the code found here:
Code:<%# Eval("URL") /*Eval("TrackNumber")+". "+Eval("Name")*/ %>'></
This was never intended to be more than an example (some of it is even commented) - you should modify this to reflect the database/datasource field names that you use.
IE: if you named your url "path" or something like that, change Eval("URL") to Eval("path") and so on. This should be modified so that it looks like you want it to!
Cheers
-Dave