My window loosened from clamp and I can't get the new window regulator to align

[chromecarz00]

So I replaced the window regulator and everything lines up, but the window when it goes us bumps against the inside of the door, then retracts again.. The only way I can get it to go through the seal and raise up from inside the door is by loosening the clamps, which allows it to rise but obviously isn't a long term solution. Any ideas/