First of all, welcome to Retro Uprising
Are you sure? I just checked the Score Queue and there were no submissions by you. To submit a score you have to first be playing on ArcadeOx Score Mode and press F12 at the score screen to submit your submission. Playing on ArcadeOx Full Mode doesn't have high score capability.
As for the donor thing, it doesn't appear as if the system has recognized your donation. I would bet that it's a bug and if that's so, it'll get fixed shortly. Thank you for your patience