I uploaded without any issues so maybe the upload photo is too big if your using gd2 maybe try switching to imagemagick?
I have no idea what your edit issue is. Maybe a hack conflict as our edit script doesnt call any index.php file. Check any links you would have in your vb
header or footer to any index.php file and turn off any plugins except vbgallery and see if you can replicate the issue
You also want to download the latest code and upload all files and run the install script to reinstall any plugins templates phrases in case this was not downloaded within the last week.