[TYPO3] TYPO4.0.1 irfaq problem

[Rocky]

Hey,

When I was using irfaq EXT in TYPO3 3.8.1 there's no problem at all. But 
when I upgraded to TYPO3 4.0.1 I got the following problems:

When I show the faq page in Front End. All the answers are expanded. But 
   eatch question has plus sign instead of minus sign beside them. How 
can I make the page's default mode to be hidden with the plus sign 
beside each question please?

Thanks a lot!
Rocky