I just tried retyping the 'my shop' url(below) in the browser address bar directly
'SecureXXX.myhosting.com/~username/~username/sampleshop/index.php?live_configurator_token=............................................'
with the following changes - included the https and removed the repeated username
'https://SecureXXX.myhosting.com/~username/sampleshop/index.php?live_configurator_token=................................'.
It worked, the sample shop page opened but again problem ..... it was unformatted. The images and text were just scattered.