nope two different systems
No, and if it was possible what would be the point of buying and Xbox 360 anyways, besides the point of live? You can play a lot of regular Xbox games on the Xbox 360.
Yes, It Is Possible To Play Old Xbox Games On An Xbox 360, However, You Cannot Play Xbox 360 Games On An Original Xbox.
No, there is no way to play Xbox 360 games on a original Xbox console.
No the Xbox plays on the Xbox network and the PS3 plays on the PlayStation network. Any new console manufacture would have to get permission to play on either network
yes
yes
You can use the xbox 360 still but the adapter or an Ethernet cable enables you to get xbox live and play online
Yes mate done it b4
You don't actually get Xbox Live on a PS3, the network for the PS3 is called the PlayStation network (creative). To connect you need an internet connection and a membership. I am currently on the XBox 360, so the details of how to connect aren't my area of expertise...
No, it's not possible.
NO They are on different online networks. PS3 plays online on the PlayStation network which is not available for the Xbox 360
This question does not give much detail to answer. However, you can play online if your xbox has internet connection and a gold membership profile.