There's an old saying that "you cannot fix stupid".
Some folk get a kick out of helping the stupid ones, only to be kicked right back when the stupid inevitably returns.
If you think £4.99 for CS3 might be even slightly genuine, then you have caught the most severe & terminal form of stupid . . . or you think that whoever is reading your gobshite has.
Cs3 & most other multi million $$$'s software can be had for nothing. Some would say that you'd have to be stupid to pay for it.
But, if you don't know what you're doing then you really don't know what you're doing !