MyYahoo trick and yahoo slurp hates my wordpress guts

Ok for those who dont know, its a popular method to be listed at Yahoo SERP by submiting your feed to MyYahoo, however if you are as lucky as i m your blog wont get listed even after 7 days of constant pinging and 7 hectoliters of consumed coffee trying to put your blog in Yahoos famous index which is getting closer as competitor to Googles throne btw….. so it`s important o get listed at Yahoo if you care least about your web promotion.
Did anyone manage to get listed with their WordPress blog? How long did it take? What do you think might be the cause of my headache. thanx!! 🙂