Actually this script not working property (probably because is version 0.3 or is 2 years old without maintenance)
apachebuddy looking for string
MaxClients and get the last founded value. Which is in this section:
<IfModule mpm_beos_module>
StartThreads 10
MaxClients 50
MaxRequestsPerThread 10000
</IfModule>
Instructions above works just wrong report from this script