Are you sure? Still the same for me, had a friend check as well. Maybe you could show me a screenshot?
No, your form doesn't work. Regardless of which option I choose, I'm sent to the PayPal login page. I generated a similar PayPal button and it works fine. http://www.csslandingpages.com/test.html Did you add the price options using the PayPal form or did you just modify the HTML code after is was generated by PayPal. I have a feeling that they are storing the price options on their server, based on the hosted_button_id value and the option values in the form. I would try to re-create the form on the PayPal site, using the button generator form to add your price options.
I am new to paypal so could you please tell me, is the buy button created for each and every product?