Exchange 2003 and Powershell v1 help

Hi All,

Heres the situation:

Exchange 2003, PowerShell v1

I'm looking to get the following information -- UserName, Mailbox Size, Last logon date and time and if I can get the last logon time filtered to active logons from 50 days ago.

Please keep in mind I cannot upgrade the version of powershell

I've found great powershell scripts that will do exactly what I need, but I'm unable to use the latest versions of the cmdlets.  I've also looked into dsquery to no avail.  Can someone help me write a quick script?  Please keep in mind that I'm realatively new to powershell/scripting and step by step would be greatly appreciated.