I was trying to create flash slide show for my website but when i was uploading swf file using File manager I get the message: "Can't upload file Slide show 450x300.swf invalid file extension" do you have any idea how i can upload it.
many thanks

I don't know as i haven't tried with file manager. Have you tried a real FTP program like Smart FTP?

I tried FTP and it worked, I uploaded my swf but my slide show still does not work. I have created custom block and added code to this block, what did i miss? I was trying to add this swf file like an image but I do not why I can not find it in the folder I uploaded before

make sure you add it to your public_html in the root bit:)