To test an SMTP server is running (Basic test)

Open a command prompt

telnet servername 25 (where servername is the hostname or ip address)
ehlo domainname (look in Active Directory if you don’t know the domain name)
mail from:administrator@domainname
rcpt to:auser@domainname
DATA
Subject:Test
(blank line)
This is a test message
. (note you have to put a dot in)
(blank line)
QUIT

Taken from this article: http://support.microsoft.com/default.aspx?kbid=153119

Customer must already have an original copy of XP Pro (OEM)

Format the PC/Notebook with XP Pro OEM

Use the customers current XP Pro OEM licence key

If you have problems registering it call Microsoft on 0800 018 8354 and they will reactivate it

We’ve now created a blog on the site to help with all your little IT problems.We hope to be giving you hints and tips on all our support ideas, and hope to include ideas, tutorial and ‘how to’ entries.