Those enganging in selling clickbank products can use this little tool called
Clickbank Quickviewer which sits in the tray and scrapes the clickbank stats page automatically…

of course if you are doing affiliate marketing with a dozen or even a hundred of companies that all have their own stats reporting tool, that doesn't help you out too much

I remember there was one software vendor who promised to support 100s of diff. merchant stats tools – but they charged quite a bit without offering a trial version, so I didn't try that.