Iterations and versions

Hi, i am confused about how to plan the iterations and the version. My first question is: Each iteration ends on a new version or i can have more than one iteration for each version?.

Second question: I can't find a document when i define functionality that i will do in the iteration. A document where i define the use case i will consider in this iteration?

In the plan iteration excel i have the start date, the end date, etc but i don't see where you say which use case you will consider for the iteration.

Thanks in advance

[559 byte] By [Javier_Uy] at [2007-12-20]