Hi,
Please replace
if(isset($this->row->product_msrp) && @$this->row->product_msrp != '0' && JRequest::getCmd('layout') == 'show'){ ?>
By
if(!empty($this->row->product_msrp) && $this->row->product_msrp > 0.0 && JRequest::getCmd('layout') == 'show'){ ?>
In the view "product listing_price".
And same thing for the line (a little below in the file)
if(isset($this->row->product_msrp) && @$this->row->product_msrp != '0' && JRequest::getCmd('layout') == 'show')
By
if(!empty($this->row->product_msrp) && $this->row->product_msrp > 0.0 && JRequest::getCmd('layout') == 'show')
Regards,