HIt Vs. Request - Is There A Difference?

I'm curious. I have read some stuff recently about Amazon, Mosso and other clouds. I know Mosso has switched over to a request based pricing model and I realized that I am not sure exactly what a 'request' is.

I think that a hit, as tallied by AWStats, Webalizer, etc. would be the same thing as a request, but I wasn't 100% sure if that was the case with Mosso. I actually contacted Mosso support (someone I know is considering using them) to ask them for clarification on a request. They stated that a page with two images would be three requests, one for each image and one for the page itself. I asked if it was the same as 'hits' and they said no, it isn't. This didn't sound right to me, because my understanding of 'hits' is the same as how he described 'requests'.

So, I figured I would just ask the experts on WHT.