Yeah, I thought the email might be a way to discover the correct format of the link. WGT should really make it easier for users to post direct links to their replays, especially here in the forums, where players often refer to replays on their profile pages & wish for fellow forum users to watch those replays.
To sum up what we've learned, if you want to send a link to one of your replays in a forum post, use this format:
http://www.wgt.com/replay.aspx?ID=number
Instead of number, you must insert the ID number of your replay. You can find out what the number is by launching the replay directly from your profile page, and looking at the address bar. The replay's link in the address bar will be:
http://www.wgt.com/gameclient.aspx?
view=showReplay&JSON={%20"GUID"%20:%20"number",
%20"Brand"%20:%20"undefined"%20}
The location highlighted in red, surrounded by quotation marks, is where you can find & copy the ID number of your replay.