A few simple questions

I'm just starting out on flash and I'm running into a few problems. I have a picture that is used as the background. I want to have it fade from color to a greyscale photo and then fade into another photo. I tried a few things but have not been able to figure it out. It may be because I don't even know what the technique is called but, that is besides the point. Anyways, any help would be very appreciated. Thanks.

you need to create mc's=movieClips and use either the time line and or actionScript.
_alpha=0;
can help more but sound like you need to use this ..alpha tweening tutorial

http://www.f-web.net/tutorials.swf
my tutorial isnt offically finished but i am sure you will get some foundation from it ..please open fullscreen to view the page ..
let me kno whow it goes for you .
cheers m8