If you download them to a USB drive then you just plug the drive into the slot on the PS3 and download into the PS3. There are even USB adapters for memory cards so you can download from your camera's card
no
if you mean from a pc to a ps3 then when you have to do is put the files which you want on the ps3 onto a usb and then put the usb in one of the ps3 ports and the copy them into your data
The game does not matter a PS3 can not play where a PC plays can not Play a PC Game and a PC can not play an Xbox 360 or PS3 game. You confuse the name of the game it is BBC2 for PC why would you think the software was OK to play against a PS3 when can you put any PS3 game in your PC and play it.
Even if you put them on the harddrive you could not play them
You cant, PC players can do it by going into command by pressing ~. But in PS3, no.
No just on the PC
In parts of it sure like for the links that are added to help people connect there PS3 to the internet see related link. What I think you want to do is Play on the PlayStation network with your PC game. You can not put a PS3 game in your PC and play it because they are written in software that you PC does not run. You could not play against a game that had software that was unable to be used and run by your PC. The PS3 would have the same problem with your PC game because the PS3 can not play a PC game and so can not play against one.
The PC does not play PS3
PS3 is not a PC
No, there are no PS3 -> PC emulators right now, however you can connect a PS3 controller to your PC.
Yes, you can install Fallout 3 PC mods from Fallout Nexus onto the PS3. For a tutorial, see: http://fallout-mods.blogspot.com/2010/11/fallout-3-mods-for-pc-on-ps3.html
The PS3 can not Play PC games