Hi again.
I'm on broadband so I'm online all the time anyway, but I've had a play around with the setup of Microsoft Internet Explorer and I've found that this works (I've tried it).
Right click on the site in your favourites list that you want available offline.
Click on "make available offline".
This opens "offline favourite wizard"
Set the options that you want - i.e. when you want to synchronize with the online version of the site or to set a password and then click on finish.
Disconnect from the internet and you should be able to view the site but obviously it won't be up to date for long.
I hope this helps you.
Fez.