this will be great for generating website background, can be saved to image? can final images be used in commercial products?

I'm using latest php5.3.3-fpm without any issues.

here corrected link to php53-fpm http://dl.iuscommunity.org/pub/ius

nginx latest repo http://centos.alt.ru/pub/repository/centos/5

Good post, may I add one tip, Always try to distribute you task to 3rd providers. Emails: google emails, rackspace emails. Support: online issues service. etc...