Ok, so I can use the L293 the same way I would with a L293D but I have to add the diodes.
Now, how do I power a L293?
The battery (7.4V) should go into the Vcc2, PIN 8, now what about Vcc1, PIN 16? Does this one provide regulated 5V for my Arduino or do I have to power this PIN with regulated (from the Arduino board or a 7805?) 5V?