I finally got my upgrade to 7 and wanted to download it, but I don't receive any email with the link. have done it several times and also switched the language. I prefer german.
Download the trial version and activate it with your new key.
As for the localization, the Parallels Desktop 7 for Mac installation image is multilingual and installs the product in all of its supported languages. You can change the language by simply changing the language of the Mac OS X.