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Forum Moderators: mademetop
With results on some search engines flucuating on a daily / weekly basis, 'ranking reports' don't really mean a whole lot.
On top of that, if you *do* run some reports, it might be for keywords that you 'plugged in' to the software, and not the same ones that you are already getting traffic for.
Best advice for you, imho, is get a good log analysis software - analog is good for that, as mentioned.
Never heard of that other one.
Welcome to the forums - we have a handy site search [searchengineworld.com] that you might want to check out - we've covered a lot of ground here, more than once - and it's very useful to see what other people have said / thought regarding similar issues when making your own decisions. :)
Cheers, and again - welcome to WebmasterWorld.