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64.***.***.*** - - [31/Aug/2004:18:22:37 -0400] "GET /catalog/?source=Adwords HTTP/1.1" 200 22811
Shouldn't there more then just this? This is how all of my log entries look.
More often than not you can configure your logs to tell you everything/nothing or somwhere in between.
It would appear that yours are not including the referring URL as standard, which you need to talk to the hosting company to configure for you.