Your config looks perfect. I don't know what 123 miner is, so perhaps that is the issue. Downloading executables from forum posts is a no no. Learn to build from source. Have you tried Thirtybird's version of minerd? It's the most up to date for YACoin. It's at https://github.com/Thirtybird/cpuminer.
Thanks Groko for your replay, I`ll give it a try.. I have had downloaded win wallet from the link on the first page of this thread, and it looks different then the one you use for POS mining explanation. do you have the link for that one ?