Hmmm, it appears you have been lucky, but congratulations anyway!
Does your Isis have a key inside or an engraved number only?
You can now register your internal number (engraved inside or on the key) on the website.
Sign in on
http://www.isisadventure.co.uk, click on your Isis number, and click on "enter the key".
These days it is no use to ask for a real key (if it was not inside the Isis already).
Also get yourself access to the 5% club on this forum, by folowing the instructions also stated on the forum frontpage:
Once you have opened your puzzle you can join the appropriate 5% Club, where you can discuss the details of the workings of the puzzle with others who have solved theirs. PM the group 'Gatekeeper' to apply for access (look out for the 'Gatekeeper' group on the right of the screen when PMing).
You must send a picture of the open puzzle together with a piece of paper with your forum name on it. Please do not email pics, send them in PM (use IMG tags). No Picture = No Entry. Once you have been given access, please remove your pictures from the internet to avoid them being picked up by search engines.
Once you have access to the 5% forum all your questions can and will be answered in there.