The link is still there for me when I do a google search for it.

 

http://www.renderosity.com/mod/bcs/mandy-hair/51246

When a product is discontinued, the page is still there, just not accessible from within Renderosity's store anymore. 

You can search the forums at Daz to see if she's posted there and then send her a private mail there and ask if you can buy the product privately from her.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi