"," in front of "save x%"
 

On the products that I have list price inserted.. by default:
it show

List Price $XXX
Our PRice $XXX
Save xx%

But on my site.. it's showing:

List Price $XXX
Our PRice $XXX
, Save xx%

notice the comma.. Which file do i fix that in? products.tpl?

can someone point that out to me?

products.tpl if it is a single column layout, products_t.tpl for multi-column. Webmaster mode will tell you exactly which template is which by the way.