Looping a qiucktime movie..howto

ej guys… good to see yuh again…

im having a little trouble with something… i made my clouds in quicktime and squeezed it from 29mb to 900k… (flash is 750x200pix) i find i a little mutch… how can i get this movie smaler and without loosing quality…

secound question… this movie is 10sec long… i need a way to loop this movie so it looks like its endless… i have After Effects but im a n00b in AE so helpme please :stuck_out_tongue:

thx…