For the rest of you who willing to try SCP plugin in QGIS without installing QGIS in your PC, you may use VirtualBox’ed (virtualized) debian which includes QGIS+SCP
As with other VirtualBox-ed OS, you may need to install VirtualBox Guest Addition CD. I’ve found that you have to install make and linux-header first before successfully installing it.
Use apt-get install or synaptic, the GUI version of apt. Unthick / uncheck CD in synaptic repository list, since you has no access to.
su to switch to root
Username and password are user
install with ./autorun.sh
reboot your debian (guest, not host)