I adopted a tutorial in the Joomla developer wiki (http://paperwork.joomla.org/Designers#Developing_a_Model-View-Controller_.28MVC.29_Component_2) to produce a Joomla component. Everything labored fine in Joomla 1.7, however when I upgraded to Joomla 2.5 the checkboxes within the after sales aren't working anymore.

I checked the code from http://docs.joomla.org/Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.7_-_Part_09#Adding_a_toolbar in Joomla 2.5 extensions and also the boxchecked hidden area remains. Even the javascript around remains the same.

Does anybody has got the same issue?

I discovered the issue. The shape must have a id near the title. Joomla 1.7 is just looking into the title, but Joomla 2.5 is checking for that id.