While access the product categories, the layout changed

[ScaleChan]

I am using JSN force template. I amended the logo and color setting.
But while access to the product categories, the layout changes to the default JSN force template not my setting.
How can I solve it, please?

My site is as below.
http://asbroadcast.com/j3/index.php/shop

While chick in category, it shows below.
http://asbroadcast.com/j3/index.php/shop/audio

Thanks.

[jenkinhill]

Please:  http://forum.virtuemart.net/index.php?topic=128401.0

[ScaleChan]

My site is as below.
http://asbroadcast.com/j3/index.php/shop

While chick in category, it shows below.
http://asbroadcast.com/j3/index.php/shop/audio

Thanks.