Yes it does _seem_ to_ work. What is confusing is that the POP server settings do not appear to be sticky if you rerun the MPW.
For example
Login to OS account 1, run MPW, set POP server to pop.1.com
Login to OS account 2, run MPW, set POP server to pop.2.com
Login to OS account 1, run MPW, the dropdown from which you select the pop server is set to to pop.2.co.uk, not pop.1.com.
This is what I found confusing, I would expect the dropdown to reflect the currently set value for the current login.
As I said, the real setting must be correct as both accounts can collect email - hardly intuitive though.
Don't wish to sound like I am slagging off what is otherwise brilliant piece of software, I was just confused by this small point.