Thanks for the link to the IMAP settings. I suspected that there would be a lot of fuss as POP is not supported by the standard Windows 8 mail client.
Tried to set it up for someone on o2 W8 mail client allowed me to enter the settings, and just went blank screen no error messages etc. So gave up and downloaded Windows Live Essentials which still supports POP.
Line: Length 250 metres
Modem router: Buffalo wbmr-hp-g300h + LinkSys wg54g both running dd-wrt firmware
= Down 19418 kbps Up 1019 kbps
WBC 20Mbps Down: 22010 kbps Up: 1019 kbps
ADSLMax 8Mbps Down: 8128 kbps Up: 448 kbps