NOT COMPLETE YET
Based on http://lucene.apache.org/solr/tutorial.html
I have only just started with Solr so YMMV and feedback welcome.
Use Syanptic to install solr-jetty [and associated dependencies]
Open a terminal and run "sudo java -jar /usr/share/jetty/start.jar"
Make sure Apache2 can run by "sudo apache2ctl start" and look for error messages.