You have got the names right :)
If I'm reading you right you have one IDE connector on your new main board (which is probably being used for the CD drive??)
if thats the case look in your old PC, if your lucky you will have an IDE cable with 3 connectors on it. if so you can replace the cable in your new machine with that and plug both the hard drive and the CD drive into it. you will have to change a little jumper (switch type thingy) on the back of the CD drive and the hard drive to set one as a master device and one as a slave (doesn't matter which way round)
or the other option is you get an external USB caddy to put your old drive into and use that, they are about �15-�20 if you shop round a bit.