Trouble Installing Sophos AV for Mac Home on Lion build 10.7.2

Was trying to install Sophos AV for Mac Home Editon on an iMac running 10.7.2 and kept receiving the following:

The installer cannot connect to Sophos, although your Mac appears to be connected to the internet. Please check your network settings and click Continue again.

For more information, please visit the support forum.

In console the following is logged:

12/11/11 10:25:23.690 PM Installer: Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo=0x7f82f2c670c0 {NSUnderlyingError=0x7f82f2c8f050 "An SSL error has occurred and a secure connection to the server cannot be made.", NSErrorFailingURLStringKey=https://savmacfree.register.sophos.com/, NSErrorFailingURLKey=https://savmacfree.register.sophos.com/, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made.}

Please advise.

Many thanks!