remove the zipped files from this folder and put them in your main mame folder

run mame and press F5 to refresh the game list

select the available folder, find your new games and find a version of it that works on the list then right click it in the game list and select add to favourites to send it to your favourites folder

If you have trouble running some games you may be able to fix it by pulling down the `options` menu, selectiong `default options` and messing about with the `display` and `rendering` options

Gobz