You need to DISABLE right column for certain pages. In your case, you will want many pages - including product_info to have right column disabled.
Here's how you do it:
There is a file:
/includes/templates/template_default/common/tpl_main_page.php
Find the following (around lines 41 - 44).
PHP Code:
// the following IF statement can be duplicated/modified as needed to set additional flags
if (in_array($current_page_base,explode(",",'list_pages_to_skip_all_right_sideboxes_on_here,separated_by_commas,and_no_spaces')) ) {
$flag_disable_right = true;
}
Where it says:
list_pages_to_skip_all_right_sideboxes_on_here,separated_by_commas,and_no_spaces
Delete the above and insert
product_info
PHP Code:
// the following IF statement can be duplicated/modified as needed to set additional flags
if (in_array($current_page_base,explode(",",'product_info')) ) {
$flag_disable_right = true;
}
... and if you want other pages too, just insert their name(s), separated by a comma... eg:
product_info,contact_us,login,etc,etc,etc,etc,etc
You need to save this and then ftp it to:
includes/templates/oem/common/
(If common folder does not exist in your custom template, create it.)