Please revise

I was playing around with the fla of this tutorial. (see link below)
i placed the buttons inside a movie clip. now it doesnt work.
the author of the tut said something about changing the path to the container movieclip. but how? can someone please revise this code:

[color=#0000d0]on[/color] color=#0000ff[/color] [color=#0000ff]{[/color]
[color=#006610]if[/color] [color=#0000ff]([/color][color=#0000d0]_root[/color].[color=#000050]currMovie[/color] [color=#0000ff]==[/color] [color=#006610]undefined[/color][color=#0000ff])[/color] [color=#0000ff]{[/color]
[color=#0000d0]_root[/color].[color=#000050]currMovie[/color] [color=#0000ff]=[/color] [color=#666666]“main”[/color]; [color=#000050]container[/color].[color=#0000d0]loadMovie[/color]color=#0000ff[/color];
[color=#0000ff]}[/color] [color=#006610]else[/color] [color=#006610]if[/color] [color=#0000ff]([/color][color=#0000d0]_root[/color].[color=#000050]currMovie[/color] [color=#0000ff]!=[/color] [color=#666666]“main”[/color][color=#0000ff])[/color]
[color=#0000ff]{[/color]
[color=#006610]if[/color] [color=#0000ff]([/color][color=#000050]container[/color].[color=#0000d0]_currentframe[/color] [color=#0000ff]>=[/color] [color=#000050]container[/color].[color=#000050]midframe[/color][color=#0000ff])[/color] [color=#0000ff]{[/color]
[color=#0000d0]_root[/color].[color=#000050]currMovie[/color] [color=#0000ff]=[/color] [color=#666666]“main”[/color];
[color=#000050]container[/color].[color=#0000d0]play[/color]color=#0000ff[/color];
[color=#0000ff]}[/color]
[color=#0000ff]}[/color]
[color=#0000ff]}[/color]

http://www.kirupa.com/developer/mx2004/transitions.htm