Fitting a shower enclosure

Hi guys

About to start re-fitting and decorating our en-suite. I will be fitting a new smaller basin (current one is over 600mm wide, looks huge in the en-suite), toilet and ahower tray enclosure. We are getting an easy plumb tray which has adjustable legs. Just been looking at the existing shower enclosure and can't see how it is fitted. Does the frame screw to the wall then the sides slot into the frame concealing the screws? How is the 90 degree corner part fitted (i.e., the corner not attached to the wall)? Is that fitted to the floor?

Any tips on fitting would be greatly appreciated.
Thanks

W0ts the book of words say ?

Not bought it yet so have no fitting instructions.
Was just really after a "heads up" so I know what I can expect.

Umm, what I have found when fitting Shower enclosures in a corner is to get the 90 degree angles bang on, otherwise you end up with the whole thing looking like a dogs breakfast. It will at some point be fastened to the wall, or walls, thats the bit where you find out if your angles are acceptable or not.

Once you get the item out of its packaging you will find that its not that much of a tricky task.

Now if your walls ain't precisely at 90degrees to each other, you are going to have to get creative with some packing pieces, or the bit that is most noticeable will be out of whack to the tray