Teasers of Ubercart Product Class instances show ok on front page but not on catalog taxonomy term result page

Sorry if this is in the wrong place, I really don't know what modules are affected or whether it is specific to Ubercart.

On the front page all lists fine, and one can play music samples using SWF object:

http://play.webel.com.au/

On the term search result pages, formatting of all teasers is strange:

http://play.webel.com.au/category/2/1/6

Grateful for assistance,

Webel