Hi James,
That's my blog post (which has now moved to www.aliaspooryorik.com/blog/). I use
that technique all the time so I'm not sure why you're getting that error. As
Sean Corfield pointed out it is a bit of a hack but it does work!
Feel free to ping me your email address via the contact form on my site and I'll
see if I can help you out.
- John
www.aliaspooryorik.com