Old Xbot proxy a bit rewritten but dont work...

I had found the old Xbot now i have rewritten it as a proxy. But i have some problems in the WorldServerConnection, something with the Handshake part doesnt work and i dont know why, can someone help me :(

why don't you just pick drew's c# silkroadsecurity?
there's an example that you can use as a starting point..

i wanna work at first with this part, it is difficult for me to understand big sources and im not a master. so at first i wannt that this proxy works