How does btc exchange work to an premade altcoin?

[DigitalPirateman]

I have a developer ready for an exchange on my new altcoin I would like the altcoin to be trade able to bitcoin but how does it work? and is it possible for it to be made by one experience developer? i was told on my favorite exchange Cryptsy they have a team of 22 members if not more by now.I also like what virwox has done to there sll I would like something like that in the future. But is 3 bitcoins a reasonable price for development or does it sound too low or high? any advice would help

thanks in advance

[bitllionaire]

an exchange just need the source of the altcoin to compile it and the wallet

[DigitalPirateman]

is there any premade packages i can download to look over the code? Im not a developer but I know some programming.

[jasemoney]

some companies sell SAAS prepackaged exchange code, check vbbb.com "build your own bitcoin exchange"

[DigitalPirateman]

thank you