Not my cuppy tea one bit.
When you said,
I believe the adapter is installed correctly (via plug n play) and Windows XP recognises that my phone is near, as an icon appears in the system tray to say that they are communicating.
my "silly" instinct in my head asked,if sobeitjedi is right could he/she dial up from PC to check connection to phone.
Will do as a refresh what-ever.