Your sat finder only shows that you are locked on some sat it doesn't tell you it's 123W or does it? Your dish is the right size dish but you got the wrong LNB type so even if you are in fact aimed at the right sat 123W your receiver will not work with the LNB you have right now. You need a Single Linear Standard LNBF--10750. I already posted a picture of the LNB and info on how to get 123W. You can take a look at it here.
http://www.ftaprofessionals.tv/views...e-options.html