Cannot connect - Connection remains 'unplugged' - updated

Wonder if anyone can shed any light or at least tell what they see which may help me get mine working......

- Carrier
Vodafone UK

- Type of connection (found in top right corner): GSM, GPRS, EDGE edge, 3G, 3g, 1X, 1XEV, 1xev
GPRS

- Time and Date of reported downtime and your timezone
Bought 26th May 2009 and has never worked.

- BlackBerry Model
Curve 8310

- Was TetherBerry working before?
No - brand new install.

- What BlackBerry OS are you using?
V4.5.0.55

I have installed the latest 1.08 version on my trusty WinXP SP2 laptop and my BB Curve. Everything installed fine - no errors.

However, I just cannot get it to connect. If I Google my issue, I see many similar posts, but none of the recommended answers have helped me.

When I look at my network connections, I see everything disabled except the Tetherberry connection - this as per many posts on the topic. The connection status is "Network Cable Unplugged".

If I then launch the Tetherberry app and get the little status window, I see the connection status change quickly to "disabled" and then back to "Network Cable Unplugged". Connecting my BB does not affect this status, although the Tetherberry status window does change from waiting for my BB, to asking me to launch Tetherberry on my BB. I can then launch this and get a good connection, but the Tetherberry status window does not show any packets and Windows keeps complaining that my connection still has its cable unplugged.

Can anyone walk through their connection and let me know the status of the Tetherberry ethernet connection at each stage? I suspect a conflict, but need more clues.

Thanks in advance.....