To answer your first question, yes you can install 2 Operating Systems side by side.
You need 4 partitions minimum, / and swap respectively for both. Or you can even share the swap space between the 2 Operating Systems as only one will be running and ideally using the swap space at any given point of time.
How did you install Kismet ? RPM/Source installation ? You can use locate command to search for the file. Before you run the command update the locate database,
For the drivers issue, post the complete output of the below given command,