Foresight still giving update problems.

I tried to update Foresight on both the Mac and the Dell today.
The Mac first time gave a problem (unfortunately, can't remember what the error message was) but the second time, soon after and without having done anything, went through smoothly.
However, on the Dell, we had a problem as I've outlined in this post.
I have a feeling it may be that I need to re-install Foresight on the Dell using the recently-downloaded 2.0.2 CD. But I'll see what replies, if any, I get to my post before deciding on the next move.