Can you temporarily attach this disks one by one to a free IDE-port of your host ?
Or do you have a IDE-2-USB adapter ?
First method is the easiest - second one is more tricky but you do not need to reboot or open your box.
When you can read those 3 disks from your host-system you can convert them into regular virtual-disks with vmware-vdiskmanager.
If you attach them as IDE you don't need to fiddle with the resulting vmdks.
If you attach them via USB you will have to manually change the result from SCSI - to IDE. This is tricky - I'll guide you thru the procedure if you want.
Tell me which option you prefer
Ulli