Another way I sometimes install a package would be to in a 8 or 10 frame deep. What I do is take the queen cage out and get her situated between frames. ( provided its warm enough out ) then you can set the package of bees inside the hive where you removed some frames. Then take the can of syrup out and close up the hive. You can put a feeder on also. Come back a day or so later and all the bees are out of the package, and HAPPY. They will be all clustered on the frames. Just take the empty package out and Waaa Laaa You just installed a package. If you are a first timer, its a little easier if you are hesitant about dealing with all the bees. Its also faster in some aspects too.
Everything happens for a reason. Time heals all wounds - time and a half heals them even faster