I am wondering if the toolbox add-in is available in SW Professional. I don't understand why it would be limited to a particular version at all as an independent feature, but my reseller can't tell me if I do or do not own a version of SW that has the toolbox. Is it limited to a certain release, and is Pro one of these releases? The difference in this is either me getting this toolbox working like it should for what I have (Pro), or spending $2K more to upgrade my SW to get the toolbox to function. HELP!
Yes Toolbox is included in Professional. Go to your Tools > Add-ins and it should be listed there to turn on.
And your reseller should be able to tell you what version of SolidWorks you have. I'm a reseller and can look that up in a matter of minutes.