Hi Harry,
I am a little confused as to what the exact problem is that you are having, but I'm assuming that you tried to download the Offshore Nav. Lite update and it would not allow you to update. Here is the link to that download from our website:
http://www.maptech.com/support/doc.cfm?docid=176&plid=24&CFID=593337&CFTOKEN=56766869
The only thing I can think of is that maybe you tried downloading the update for the full version of Offshore Navigator, instead of the Lite version. The booklet you received may be for the full version, not the Lite version. The website is correct.
-Justine Baldwin
Technical Support Specialist