How can I transfer Key Home Gourmet from my PC to my iPad?
You can't transfer the application from your PC to iPad because there is no version available for iPhone, but there is another way. The developers of MasterCook have released MasterCook which can load KCF files (default Key Home Gourmet file format).
This is specified on a post as well: http://support.mastercook.com/entries/22545443-Transferring-Your-Recipes-from-Key-Gourmet
If you can't do it directly on the iPad, install the Windows application, convert the files and then load them in MasterCook for iOS.