Don't buy from this or other companies that offer products like these, you would be supporting the worst type of piracy!
These are companies making money by selling pirated software, it is not legit at all. There is no such thing as an OEM Photoshop or Flash Mx, there never has been.
If you get anything, it will be a disk with a very fake looking label containing software with possible viruses on it which you can't legally register or upgrade.
Whenever something sounds too good to be true, well....I'll let you figure out the rest!