Need Help with Photo Album in Flash 8!

Hi guys

I’m new to this forum and beginner in flash. I’m trying to make a photo album but it’s taking so long.
This is how was it before http://autofranz.com/fotoalbum/index
After I changed it looks like this http://autofranz.com/fotoalbum/photoalbum4
As you noticed change in picture appirance… I inserted the motion tween;color Alpha 20% - 100% BUT I have to do so for each picture (12 pics = 12 movie clips & 12 tweens) and its taking a lot of time couse i don’t know the other way.
Please if you know an easier way to do let me know.
Thanks for any help