Open Terminal

sudo apt-add-repository ppa:bitcoin/bitcoin

enter password if asked

press enter for yes

sudo apt-get update

sudo apt-get install qt4-default qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev libdb4.8++-dev libssl-dev libminiupnpc-dev libminiupnpc8

press y and enter to confirm 34MB of download and 196MB of disk space (takes a while)

wget --output-document


cd cagecoin-0.7.0-src/


add a # in front of BOOST_LIB_SUFFIX=-mt-s
press ctrl + x
y and enter to save


make   (takes a while might get a few warnings this is normal)