There is a program you can get to "read" your scanner to the computer...several out there, but
PSREdit - Configuration Editors for Whistler, GRE, and Radio Shack scanners gives you a 30 day trial, as does
SALE Whistler WS1040 WS1065 software RadioShack PRO-106 PRO106 PRO-197 PRO197 PSR-500 PSR-600 PRO-106 PRO106 PRO-197 PRO197 PSR500 PSR600 PRO651 PRO652 Software not win500 . If you already had another program, let me know and I'll see if I can find it too. I do have a licensed version of ARC500, so that would likely be my preference to help you with. Obviously, you'll need your programming cable for your radio too.
If you want to attempt to just program from the keyboard, here are some steps to try:
Scanner on...hit "PROG", then F2 for "edit". Scroll over until you see "TSYS" and hit the key under that. Hit the up or down arrows until you are on your OKWIN system (not sure what yours is called). Once on it, hit "EDIT". On the next menu, on type, it should be "MOT 800/900", and we want to change this to "P25 AUTO". Hit Save and get out of all the menus. This should allow the system to be searched if you had a "wildcard" programmed in. In the scanner's language, the talkgroups are different numbers now (they didn't speak hexadecimal - if they did, no other changes would be required), so the labels may not come up as they used to.