Migrating WDK from S1 modules to S2.5 modules

I REALLY wish there was a place to download a CDROM ISO image of the install disk for a v2.5 WDK.

I think I’ve pieced together all the bits I need to get things working again, but…

I purchased four XB24-BWIT-004 modules from DigiKey to replace the S1 modules in my existing kit(s).

Now, I’m trying to get back to the point where I can start doing range tests, etc., as that’s as far as I had gotten with the S1 kits before realizing that my not very old WDKs were already obsolete.

I think I’ve turned my XB24-BWIT-004 into a XB24-BWIT-002 by going to the modem config tab in x-ctu, and changing the function set on the USB connected device to ZIGBEE COORDINATOR AT, but I’m not sure at all if that’s ok.

I could find NOTHING on the digi site for migrating from old S1 nodes to S2.

Can someone please at least list out the steps required to migrate a S1 WDK to S2 radios?