They say that if I buy a product its a 'Download only'. But if I buy this product and I download it. What are the futher options with it. For instance, can I put it on CD/DVD as back-up whenever my PC may crash?
Yes, you can save the installer onto a cd, dvd, usb flashdisk etc for backup purposes. You cannot have the programs installed on more than one computer at the same time, however.
How do I recieve this download? On my own FXHome account?
Yes, basically you buy the product while you're logged into the site with your username. You'll then be able to download the product you bought (and this download page is always accessible), and you will receive a magic code to do this. You will also have to download a keyfile which unlocks each program.
I never bought a download before so can anyone tell me how this works so I don't confront any unwanted suprises???
Fxhome has a few security measures which you have to remember. If multiple users appear to be using your account to download the software and keyfiles, Fxhome will probably kick you off the site!
In addition, Fxhome uploads updates to the programs every few months. The software expires and these updates will allow you to continue to use the program, so you'll have to login and download the new version (you won't have to pay for these though). This is a measure against piracy.