I just add another "download" button to download it directly.
Just unzip the file and double click html file.
By the way, I think our server was removed from SPAM list.
I hope mail server will be available for you now.
About list of the simulations you have create, I will try to add that later.
So it is possible to create better interface.
If there are many users really interested in simulation builder, I will try to find time to re-write the interface.