174159 Yahoo PM bot needed

We need a Yahoo PM bot which can extract yahoo userid's ad store them in a text file on the pc for future use. Further it can use the same text file to send customized messages to that list. The users in that list must get the messages as PM and in case they are off line, they must get it when they switch on their userid's. I have attached an image which will clear all things i need in this bot. Not to mention this bot must be capable of using and rotating multiple userid's so as to maintain yahoo code and not banning those userid's or my IP. this timer option shall be customizable of course. Happy bidding.