the easy and quick way would be surgery.but it is also the most painful and dangerous.
stretching will take a few months but is easy and mostly painless.here is more information for you.
http://www.norm-uk.org/circumcision_alternative_treatments.html
http://www.cirp.org/library/treatment/phimosis/
http://www.glansie.com/en/about.htm
http://gfs.platigo.com/
http://www.medhelp.org/posts/show/363723
http://www.male-initiation.net/library/medicus/dewan.html