The Ubuntu Software Center is an interface that allows Ubuntu users to install many paid or free applications and games. If you want to port Ubuntu Software Center to a system running Linux Mint 12, then it would be possible if you follow these instructions:
1. Under Linux Mint 12, launch the terminal and install Ubuntu Software Center with this command:
sudo apt-get install software-center
2. Run now this command to create the LinuxMint.py file:
sudo cp -r /usr/share/software-center/softwarecenter/distro/Ubuntu.py /usr/share/software-center/softwarecenter/distro/LinuxMint.py
3. Edit now this file with this command:
gksudo gedit /usr/share/software-center/softwarecenter/distro/LinuxMint.py
4. Find now this line:
class Ubuntu(Debian)
And replace it with this line:
class LinuxMint(Debian)
5. Save your file and exit. You can now use Ubuntu Software Center on Linux Mint 12.
Source: http://www.upubuntu.com/2011/12/how-to-install-ubuntu-software-center.html
