Everything done OK but I can't found my files on ATV

Hi
I install everything as must be, I make the connection with the ATV and I upload several movies but when I go to my ATV I can’t found anything
I don’t Know what I am doing wrong, I can transfer with iTunes without any problem but not with ATV Flash Please help, if there any insulation step by step for Dummies; also how I can see the connection activity,

I appreciate to much any help on this matter

Thanks

This guide may be helpful: http://wiki.atvflash.com/index.php?title=Playing_Video