Installing Connect in 5.2

The Connect module requires the Module "Email" to be installed, i can't find this module... Anyone knows where to find it or whats the alias name of the Module?

I want to use the Connect module for the following scenario:
-Project administrator creates a node for a Sports Project
-Authenticated Users add Nodes of one type, related to this Project with cck firlds in it
-On the Project Site there should be a list of the Child Entries and on the Child Entries Full View a Link to the Project.

Another Way to acomplish this would be to have a new Taxonomy Term created on Project Node Creation.
Then the users could choose a Project in the taxonomy list. For this Feature i would need a free taging field in the Project node creation form that is automaticaly populated with the Title. And a List field in the User Form where they should only choose form the available Projects. How (if at all) can this be done without coding new Modules?

I tried to solve it with the Node Relativity. The Users had to be enabled to edit the Project Node in order to add Child Nodes. But they are not supposed to edit the contents of the Project node itsef. So i tried something else:

I figured tat the Comments node Module woud do the Job and it almost did. I was able to have the "comments" renamed propperly (bot globally :-( wich i ditn't like that much). The main drawback was that the comment nodes were difficult to filter by the parent Project. As I am no coder i had to rely on the filter-fields offered in the Views Module. There is a field called "comment node: parent node". It shows a text field in the filter, instead of a select list with titles. I guess it is about the parents of threaded comments? By Exposing the Filter it suddently was deleted.
Also i could not find a way to assign the Parent to a comment node after creation (i.E. directly via the Create content form) wich makes it hard for managing the contents of the Site.

Is it possible to do something like this with Connect Module? Or would some php inserted in certain Points do the Job?Would apprechiate help...