Flash gallery will not work properly after uploading on ftp

I need some help with my new project please :-<
I have been working on a flash website and finished it yesterday, and among other pages, i have a gallery section. The gallery works perfectly on my local PC, but when i try to upload the website to ftp so I can put it online, the gallery shows completely wrong, in fact only one picture is visible. The AS code for the gallery is written in one movie clip with the instance name gall, and this movie clip is located in the actual page of the gallery, the one with the animation.
I don’t know if that’s relevant, but i thought i should mention.
I have attached a pic of what the right gallery looks like on my PC
Please, if u could help me, i would be grateful.
Thank you