If that doesnt work, here's other places to try
http://www.provenrepellents.com/products.php?catID=7
http://www.critter-repellent.com/
http://www2.yardiac.com/list_categories.asp?id=12
http://www.nottonight.com/
I cannot find the name of the place i bought some dog repellent when i used to live in a townhouse and had doggiepoop in the front yard. The repellent seemed to work.