Hmmmm,

Can you do the same thing with Office 2003? Volume licenses are extremely expensive and this would solve a lot of issues.
I very much doubt it. This is rather different, it is software that prints labels, and is loaded onto a desktop. Now it is probably OK to let people share that one desktop installation, but I would be very surprised if that was not restricted to one user at a time

As the company seem to have managed with this software for some time, that may well be OK, otherwise they will have to fork out for the enterprise version, which allows unlimited users.

With stuff like Office you need an applications server and go thin client. I am not sure about pricing for server installations, nor how many clients each installation would support.