I share Daryls comments although personally i'm not to bothered about cursor type
Creating a customised version of a preset button and applying it to one page works ok, but applying the same to a second page and form, seems to lose the mouseover effect.
Ahh... I see why, the ext has appended a value to the button name and created CSS code for it in the CSS file.
Why would it do that if I just wanted to add the same button to a different page?