Just wondering I've got a few thousand registered impressions on my account but no clicks. Just seems VERY strange
You just need to sign in to your adsense account and see whether the impression is showing. If yes, your code is ok and ads is displaying. Else, suggest you change the ads size and placement
It happens sometimes with me also. When a page impression is higher and I get no click. So do not worry and try to increase your traffic more and more.
There's always a possibility for this thing to happen once in a while. 1000 impression but with no clicks. If the same things goes on the same, then you should start to work on the placement, ads format and check also on your ads relevancy.
What did you mean by "registered impressions"? Anyway, a little bit strange no one click if ur impressions in that scale