I have two hdd's one primary 19gb. One slave 14gb. and an 80gb external for back up and whatever. my question is on the slave. I read somewhere that i only need make this an extended partition drive, if i do this without giving it a drive letter does this realy mean i have 33 gb c drive?
I expect you were reading about extending volumes ("spanning"), not extended partitions. Spanning would give you one 33G logical drive; however, that is not an option here as you cannot span the boot volume. However, you could format both drives, install on the 19G, and then mount the second drive somewhere in the filesystem (such as mounting it as your user folder).
Having said that, unless you are running very old versions of Windows or are limiting the machine to a (very) few installed applications, 19G is not a workable size for a Windows system.