Adpater card speed

Hi,
I have a windows nt4.0 server with two 3com etherlink 10/100 network adapter cards. One is a 3c905b-tx and the other is a 3c905c-tx. How can see the network card speed (10 or 100). Also see the activity of packets being sent and received. I hope this is not to much of a ridiculous quesion.
Thanks in advance.