problem with cd-rw brand (acer)

ihave a pc133 socket370 m758lmr mainboard and the internal sound connections (cd1 & cd2 & aux 1) it has to connect to cd2 only and my other cd rom is already hooked to it and the aux 1 only has solder joints on it it doesnt have a plug so were do iconnect my rw drive to also i cant get nothing to copy onto it it keeps comming up with an era message not reconiseing it.thank you for all you help