ActionScript 3.0 :: Flash Project Multi File Preloader?

i have an index.fla page and will be about 10 .swf files to load into it, they will be large videos witch need pre loading. I have read lots of threads all over the place and have tryed lots of ways.The simplest way i have found so far works but gives me the error :

TypeError: Error #1006: value is not a function.
at MethodInfo-8()

after i have loaded the 1st vid intro witch then using a dispatchEvent(new Event("allDone", true));realays the info to the index file and loads the movie but the percent timer stops working and gives the error above. I have the following code

.as file

Code:
package package1
{
public class page

[code]....