2.3 has quite an interesting new feature which should make it much easier for store owners to change the look of their shop.
The Information Boxes (that is those in the left and right column of most osCommerce sites) can now be turned on and off and swapped positions from directly in the shop admin. Previously the shop owner (or developer/designer) had to amend /includes/column_left.php and or /includes/column_right.php to achieve the same.
So, how does it work?
Enter your admin area > modules > boxes – here you will see the admin functions to change the boxes;
In a new installation of osCommerce 2.3, all the infoBoxes in the left column have a sort order starting with 1 and the right column infoboxes have a sort order starting with 5. Easy to see what goes where? The LOWER the number the more towards the top of the column. In other words a box with a sort order of 1000 would be above a box with a sort order of 1050 – hope this makes sense?
How to turn an infoBox off?
Easy. Let’s turn off the Manufacturers box. Click the Manufacturers box and press the [-Remove Module] button;
How to move an infoBox more towards the top (or bottom) of the column?
As previously explained, you will need to change the sort order! Let’s move the “whats new” box from it’s present position to a new position above the “search” box, but below the “categories” box. First thing to work out is the present sort orders of the search and categories box. Search = 1030 and Categories = 1000. Thus to get our box in between those two, we can use any number from 1001 to 1029. I’d suggest exactly halfway at 1015. Select the “Whats New” box and press the  button. This will give you the small editing box;
Look for sort order, and change the value to 1015, then press [save].
Go to your site and refresh your browser. The Whats New box is now between the Categories box and the Search Box;
How to move a box from one column to the other?
Easy! Again decide where you want your box by choosing a new sort order. Let’s say I want the “Search” box to be moved from left column to right column and to go at the top of the right column. Presently at the top of the right column is the shopping cart, so we know that the search box needs a LOWER number than the “shopping cart” box (5000). Let’s say 4900. Select the “Search” box, and press  button. Again this brings up the editing box;
This time, change the sort order to 4900 and ALSO select “Right Column”. then [save]. Go to your site and refresh your page, and the Search box is now placed at the top of the right hand column;
It’s now easier for the Store Owner to change the look of his site.