dear 
the problem you type is not so tipical ,u just creat a movie clip in wich 
labled the sounds like fream 1,2,3,4,5,6,etc and then drop the cilip on 
stage, set its instance name and then creat text field to get input from 
user,prosess the input by using (if then else) steament ,in each condition 
use :tell target statment ,put insteace name of movie clip in  (instance 
name,)
then use goto and play statment and specify the frame number u want to 
play 
this is very simple to do ,if u have problems to do ,no matter just mail 
me i will send SWF file that will contain same concept ,u will be able to 
know the code inside ,
Your Friend 
Rana Ahsan,
Pakistan