Replying to Binder question

So I'm well......cheap, so even though I'm almost 200lbs I'm skiing Marker Free 12's which obviously are terrible.  Last week i didn't quite get my back foot up onto a rail and knocked my ski off.  You know the two "wing" looking pieces on the toe part, that are on the sides of the toe part of your boot when you clip in?  One of them was completely blown out to one side.  I just pushed on it really hard and slammed it a couple times and it popped back into place.  I skied the rest of the day on it fine.

Is it safe to keep skiing on it?  Did it just get knocked out of place or is there probably an internal plastic piece that is now broken?

Also what is the cheapest possible decent binding I can get?  Because these things are on their last legs regardless,  I sort of doubt they'll even last me this season.