You can't.
It needs to be Jailbroken. -Actually, If you have the iPhone sdk, you can add the ipa to there. Then, add the app from the sdk. Detailed instructions here: http://www.YouTube.com/watch?v=0JEI_Geb_zc
With xappsx I think
It is impossible to get an installer on an iPod Touch without jailbreaking.
You cannot get all apps for free without jailbreaking an iPod Touch. It is not possible.
no
You can't.
Yes; not jailbreaking it. If you mean a way to do the same thing as jailbreaking without actually doing so, there is no current way to do so.
No, not without jailbreaking your iPod 2g.
There is know way without jailbreaking
if you have wifi then you can go to the app store on the ipod touch and download it, or you could go on to itunes and get the app there I get the iPod Converter for put DVD and video to iPod touch without jailbreaking it.
You can get an installer without Jailbreaking it, using a program called 'Pusher'.
There is no way to install Cydia without jailbreaking.
Yes, jailbreaking does void the warranty.
easy just ask the person the password