appslap, I notaced your videos were in HD.
Basic, What format do you have them Saved as after editing? If your editin program has a way to save the file as an Mp4 or HP.720p And then upload it to Youtube, It should become the Original HD file. As long as the end saved file is an HD format Youtube recognizes it should become HD.
Also, It helps to save in Widescreen format to fit the entire Youtube viewing box.
Edit, What Program are you useing? How long ago did you try to upload these videos? After the video is done "prossesing" it takes maybe 10min for the HQ or HD opption to show.