[USR-TC] Info on upgrading to v.92 pls

Maybe someone on the list can help me out. I'm researching on what needs to be upgraded to be v.92. Currently I'm at TCS ver 4.2 on our TC 1000. I've spent some time on the Commworks site but was not successful. The cards that are in chassis are 14 DSP's that are at 2.1.85, 2 Hiper Arcs one is a 128M and the other is a 64M both at 5.0.9, lastly the NMC is at 7.1.8. If someone has the link or the info on what needs to be upgraded please send me an email. Thanks, -Brent