Thank you to all who have provided help, but a coworker and I solved the problem. When the script ran at login it was defaulting to my home drive when looking for the VBScript, which obviously was not there. When we modified the KIX script to include the full path to VBScript it worked perfectly. Here's the final code:
Code
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; Remaps printers to the new print server TEH 2/6/2007
IF INGROUP("Domain Printer Test")=1 ; All users in the test group
shell "cscript.exe //nologo \\myserver\netlogon\qchange.vbs \\myserver\netlogon\changes.txt"
ENDIF
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Thank you again.