I completly understand your concerns about your information getting used, abused, or otherwise treated.
WE WILL NOT SHARE YOUR INFORMATION WITH ANYONE
The only thing we plan to do with your info (beyond this contest that is), is to put you on our e-mail list. We send out about 1 or 2 e-mails per year telling what upcoming trips we have--so you won't receive much! It's also very easy to get off the list if you get sick of us. All you have to do is send me an e-mail at firstname.lastname@example.org
and I will take you off.
WE WILL NOT SHARE YOUR INFORMATION WITH ANYONE!
As for rowing a raft...you would be welcome to do that, but you would have to bring your own frame and oars to Ecuador...I've never even seen one in the country! It's all paddle rafting there.