Sample Php Class update() implementation

Hey guys,

I've spent 2 days straight trying to figure out how to implement the update function in the sample class that Flash builder generates. Testing the operation works fine, but when i try to implement it in code using:

protected function updateProduct(item:Product):void

{

updateProductResult.token = productService.updateProduct(item);

}

it simply refuses to work. I know i am missing something completely obvious but i just can't figure it out!!! Thanks in advance guys.

- T