Thank you for contacting me, I did install last night's build and it does in fact seem to work correctly with both tables and table-less layouts.
However after working a little more with the tooltips extension I noticed that not all validations seem to include the tooltips.
I registered on my test site, using wamp server, windows vista home premium, and using firefox, I then went ahead and tried to register again with the same information knowing it should throw an error because of the same email address already being registered.
Well I then get "That email address is already registered", but it is not in a tooltip, so I then tried to login and intentionally misspell my password, well I then get" The login information provided is not valid. Please try again.", and this is also not in a tooltip.
So might this be a bug? or is this the way the validation tooltips are suppose to work? I am including screenshots of both the login page and the register with the tooltips and without the tooltips.
Lastly, could this just be because I am using Dreamweaver CS3?