Ripped Off :(

First of all i want to say i really like yall forums, This is my first post and unfortunately i need your help. I purchased this Sony Ericsson W810i from some asian guy as he was walking out of a tmobile store, he had a brand new sidekick in his hand and offered me his w810i for 30 bucks i took it and now i cant use it, it says enter unlock code? how can i get this code?

I'm sorry mate but i must LOL
30 bucks being in what denomination?
Anyway give us more details, does it say enter unlock code when you start it ? That might be a PIN code. Or is it when you put ina SIM or something?
I think since its a W810 we can fix it for free :) unless its CID 50 :(
Anything else? Does the walkman mode work?

when i power it on it goes to start-up menu and it has 2 choices: Start Phone & Music Only, when i select "start phone" a little white screen with a lock on it that says "phone lock code:" appears and above it says Phone Locked.

anything else u need to know?

the phone seems like its in working order nothing wrong with it physically except some cosmetic scratches. So did i get ripped off or is this phone worth my hard earned 30 US dollars?

Nope mate you dint :)
I think the asian most probably forgot to tell you that the phone had a PIN Code request on.
Anyway since one asian ripped you off this one will help yout :p
Download XS++ and connect your phone to it. Then post the log here. Will tell you what we can do after that :)

You need to install the USB flash drivers before you can connect the phone.
Once you've connected the phone, go to the "gdfs" tab and click on "phone lock".

so i need to buy a cable??? all he gave me was the phone and home charger.

Yeah, your gonna need a usb cable. The cheapest option would be to hit up ebay and search for the usb cable for your model.

Once you have that it should be a simple fix with xs++.

alright just purchased 1 on ebay for like 3 bucks

cool matey, just follow justme instructions and if you have doubts post the log before continuing

will do thanx or ya help fellas. Im in the IT Security field so if theres anything I can help yall with be sure to let me know.