Hello Laszlo,
You will need to have a copy of CR8.5 to handle this. Crystal Report is very sensetive about the printer driver.
Once you open the label template in CR8.5, under "File" -> "Printer Setup", select the printer you want in the dialogbox, and save the labe template.
After that, you are ready to go.
Give tech support a call if you don't have a copy of CR8.5, they would happy to help you with a small service charge. Hope this helps.
Thanks.
Feng