Extension working in Flash MX cannot work in Flash MX 2004!


I bought a flash extension last year which was working fine in flash MX. For your information, the flash extension was used to produce some flying effect.

However the flash extension cannot work in Flash MX 2004. The problem should be that the extension used ActionScripts 1.0 to produce the effect and Flash MX 2004 is using ActionScripts 2.0

Are there any softwares that can convert AS 1.0 to AS 2.0? If yes. Is it possible that, I used flash MX to produce a FLA file then use the software to convert AS 1.0 to AS 2.0. Or there are some other better ways to do that…

Thanks and best regards