Thanks for the first link, that managed to change my email, i didn't know their was such an option.
"Oops, there was an error with merging your registrations. Please click here to try again.
If you need further assistance, you can contact Sales at email@example.com."
I don't know what that link does as i seem to be able to see my downloads and order history from before anyway.
Their was a lot of game way back when Stardock ran Impulse which some are downloadable and most are not.
My games library is now mainly on Steam, the games i can download from the MY Downloads page here on Stardock i have on Steam and the ones i cant download in most cases are not available on Steam.