Hi - please could someone help me?

I has Outlook 2007 working beautifully, then.......

My ZoneAlarm Security Suite insisted that I remove the (free) AVG
Antivirus that the machine arrived with.

This I did, using Add/Remove Programs, and for a few days everything
continued to be fine.

Following a power-down - not of my choosing - Outlook has developed
some unusual and unwanted characteristics.

1. When starting, a small error message appears headed "AV" and the
text "Failed to initialise".

This disappears and Outlook continues to load - very slowly.

2. Eventually, the main Outlook2007 frames appears together with
another AVG error message of "The Add-in "AVG Exchange Extension"
(C:PROGRA~1AVGAVG8avgch32.dll) cannot be loaded and has been disabled
by Outlook. Please contact the Add-in Manufacturer for an update. If
no update is available, please uninstall the Add-in"

The Add-in does not appear in the ADD/Remove Programs list.
AVG does not appear in the Add/remove Programs List

3. Eventually, another version of this message reappears as the frames
become populated by the program.

4. E-mails can no longer be sent/received through Outlook2007.

Outlook sends the program into off-line mode.

Send/Receive details indicate that the e-mail servers cannot recognise
my account.

In desperation I ran Regedit and manually removed almost all of the
instances where I was sure that the orphan entries for AVG or AVG8
resided.

I have also uninstalled Office 2007 in its entirety, rebooted and
reinstalled Office 2007.

Outlook continues to misbehave with one additional problem - it will
not let me create a WORKING e-mail account in either POP3 or IMAP.

Has anyone met this before?
Is their a solution?

Hope someone can help - thanks in advance - David