hi rix,
you can use some tools to check if the programe is packed and which version it has:

you can use

-Stud_PE hxxp://itimer.home.ro/
-peid hxxp://protools.anticrack.de/files/utilities/peid.zip
-pe-scan hxxp://protools.anticrack.de/files/utilities/pe-scan.zip

with stud_PE, you will find out the name of packer on section "signature"

[Edit by JMI: No clickable links Please, not even to tool sites.]

bye
Rheya