I was wondering how to install apps from my memory card, and where to place them on the memory card

You can place them anywhere on the MMC, I use others. All you need to do is use a 3rd party filemanger to locate the file, and open it!

Please search the forum in the future as this has been covered before.

yeah just transfer the sis or jar files to your mmc. Store it in a seperate folder and then just execute it using ur phones file manager or a manager like fExplorer... I do it all the time.... :)

ok cool i got doom working at last.
i read about people playing n-gauge games on the 6600, i got one in a folder on my MMC, sonic the hedgehog. but its in all .bin and .MBN files, there is an .app file.
does anyone know how to get them to work ?

You can using app manager ti install trird app to your MMC