I have DIYed a home gallery slides but it won't upload to YouTube? What should I do?

I have a iPhone and can't download the songs straight to my phone.

I have been getting sick of YouTube and I decided to split my youtube channel into 4 other channels. Now I am enjoying making these youtube channels. But I can't understand the customized thumbnails, which bothers me a lot!!!
On my old channel, I had customized thumbnails. But on my new youtube channels, I dont have them. I emailed youtube to ask why I just get jibber jabber that I cant understand back!
What can i do now?

How to convert a web video like Youtube video to GIF?

I want to find some YouTube downloader that can convert video so that I can play them on my iPoad touch. DO you guys have any suggestion?

I want to make a "best albums of 2013 " video with albums covers and my my audio talking about the video for uploading to YouTube. I can handle the subtitles part, but have no idea about how to add the album covers and audio to the video.

how can i download a youtube video?

I know youtube converts your uploaded video after it's uploaded.
I'm trying to copy the same quality a video has on a computer onto the uploaded version; hopefully you can follow what I'm tryin' to say.

I am creating my first youtube video and need an easy-to-use & free editing program. What video editting freeware have you tried and would like to recommend? Thanks a lot!

How to download youtube videos onto my mac easily, and for free?