.net curl - 2007-08-27

I’m trying to traduce  GrabYahoo - Yahoo Service Grabber class to .net (C#)

I’m having different problems

1) the only library that I have is LibCurlNet.dll, the others like
    a) libcurl.dll

    I can’t open using vs2005 and when I compile the hole project i have another error

This class was traduced by someone?

Thanks
Luis