In order to be able to install rpm packages use the following commands.
First of all install the necessary prerequisites:
sudo apt-get install alien dpkg-dev debhelper build_essential
Secondly generate the with the Package name (replace pkgnme.rpm with the package name):
sudo alien pkgnme.rpm
Thirdly install the new deb package (use the name of the new deb package instead of the pkgnme.deb:
sudo dpkg -i pkgnme.deb