Jeffcame,
Thank you for your GPIB driver request. Below is a link for all of the the NI developed instrument drivers available for Wavetek instruments.
http://search.ni.com/query.html?lk=1&col=alldocs&nh=500&rf=3&ql=&pw=595&qp=%2BContentType%3AInstrumentDriver+%2BIDNetManufacturer%3A%22Wavetek%22&qt=&layout=IDNet
You may want to request an instrument driver at the following website.
http://www.ni.com/devzone/idnet/
This suggestion will go straight to developers for consideration. Thanks for your input!
Shea C
Applications Engineering
National Instruments