Welcome to the forums, garwal
The Adobe password is for your ebooks, not for the market.
To figure out your Adobe password, go to
www.adobe.com and click the "Sign in" link near the top right corner. Try your email address and password you believe is your Adobe account. If it doesn't work, use the two "Did you forget..." links. Once you figure out the adobe ID and password, enter those in the PE registration wizard.
The enTourage "market" and main part of the PE registration wizard uses your
www.entourageedge.com website account. Go to
http://www.entourageedge.com/customer/account/login/ to figure those out.
Hopefully this helps