I heard you got mad.
I never get mad. It's not in me. I'm sorry if you got that impression though. Maybe I should have used more smileys.
I refuse to read what you wrote.
It's very hard for me to help you when you won't answer my questions. I'd need to know all the details of what you did and how when the first three uploads failed, and why I can't find the mission or the addon in the Missions Depot's ftp folder.
These instructions are not for you alone, but for everyone who's reading.
As macguba already said it, missions to Missions Depot and addons to Addons depot.
When you upload with ftp the submission procedure dosn't continue automatically. You must follow the instructions and press the 'next'-button, and then you're asked some details ect.
The ftp upload should be used for files larger than 2 Mb. Note that 6Mb is the largest size allowed and everything above will either fail to upload or be deleted when the time comes to review them.
There might be a bug in the system. I really hope you answer the first specific questions I made, so I can get my finger on the problem if it exists.