>>> I know I can export/import site information but I want a similar
>>> proceedure for preferences.
>>
>> If you have DW8 installed when you install DW CS3, the preferences
>> are automatically migrated.
>>
>> There is no other tool in DW for migrating preferences, but you can
>> do it manually. Are you using Mac or Win?
>
> Thank you, I didn't realize they would be automatically migrated. I am
> using a PC/Win. Do you have a manual procedure if I should need it in
> the future?

Warning: this requires manually updating the Windows Registry which can
totally mess up your system, so proceed at your own risk.

The DW8 General Registry key is here:
HKEY_CURRENT_USER/Software/Macromedia/Dreamweaver 8

The DW CS3 General Registry key is here:
HKEY_CURRENT_USER/Software/Adobe/Dreamweaver 9

Use regedit to export the DW8 registry settings and then import it into
DW CS3.

HTH,
Randy