This is my game and i need help!

Hi i want to make this game work. it is a really cheap game but it would help me alot if i coudl get it to work for future preferences.

what i want to have happen is to get the enemy to keep on respawning until my castle gets destroyed without having to make a million guys! (i just want some script 4 it k).

p.s

your an archer on top of the castle and you just have to click on the enemys and u get 100 points per enemy.

Here is the SWF http://www.kirupa.com/forum/attachment.php?attachmentid=28302&stc=1