Hi Eric and neilo,
Thank you for the follow up and making things clearer.
I have replaced the code directly by pasting into CS3, to make sure it was correct and uploaded to my site.
However it has not resolved the problem with overlapping in IE8 compatability view.
Also repeated refreshing of the menu causes additional problems on the live site, which is worse than before.
I have now reverted to the orginal upload.
So I have decided to think afresh again and will go with a simpler menu system and
abandon multiple menus in LHS column. I did not want to risk customers dissapearing
as they get impatient.
Thank you all the same for your time and attention.