1.ssh into your server and type in the following commands in that exact order
2. mkdir /home/src
3. cd /home/src
4. Download the latest version of ImageMagick from:
ftp://ftp.imagemagick.org/pub/ImageMagick/
then upload it to the 'src' directory you just made.
5. tar xvzf ImageMagick-6.x.x-x.tar.gz
cd Imagemagick-6.x.x-x.tar.gz
./configure
6. make
7. make install
8. cd PerlMagick
9. perl Makefile.PL
10. make
11. make install
Then you will have Image Magick installed. Please note that some of these steps may take a little bit of time to complete, so please be patient.