How do I adjust ports so my outgoing mail will work properly

[ballzy]

I get the message that port 25 is being used by another application and something needs to be done to work correctly. Port 25 is my SMTP. My outgoing mail is undeliverable to many of my lists and contacts due to this problem. I tried to read through thre Co-operation with other software in MAnual Settings of Mail Protection in Help but am unable to correct the problem. I like this software as it was the only thing that helped me rid myself of the Revop C trojan that I had but I desperately need my e-mail to work. Could somebody please help me? Thanks

[ballzy]

This is the report I get when I try to sen d mail to my list

Reporting-MTA: dns;hppav
Received-From-MTA: dns;hppav
Arrival-Date: Mon, 10 May 2004 13:43:07 -0400
 
Final-Recipient: rfc822;EMULE@LISTS.NETSPACE.ORG
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp;504 <hppav>: Helo command rejected: need fully-qualified hostname

I am running XP Pro. Help Me Please