Outlook/Pop3 Email Question

[benz57us]

Hi, I have a Verizon 700wx and I used Outlook connected to Exchnage 2003 and a POP3 account.

Because I have PC's running outlook that hit the POP3 account too, they copy the POP3 email to one of my folders in Exchange - which is good.
The problem is that I want to reply-to the sender or forward these messages on the Treo and I can't switch email accounts because the emails have been put into Outlook folders. Is there some register setting or a method that will allow me to properly reply to these emails using the account of my choosing?

Thanks!