That looks very promising, well done. The trace shouldn't be so bright when the intensity control is at minimum, so there's a fault there somewhere. However, it seems like it doesn't matter too much for now.
As for the other controls, yes, there are a lot of them! When the 545 was new in the 1950s it was quite probably the best and most sophisticated oscilloscope in the world, and had features that had never been seen before. It has, for example, a delayed timebase which can be used to zoom-in on parts of a signal, which I think was a world first at the time. If it was a car, it would be a Rolls-Royce.
Learning to drive it properly will take some time if you are new to oscilloscopes. Reading the manual (see link I sent yesterday) will help a lot, as will the classic Tek document 'The XYZs of Oscilloscopes'. Recent versions have a load of stuff about digital scopes in that you don't need, but the basic principles are sound. This one's a bit older and therefore shorter, but still has lots of digital stuff:
http://w140.com/tekwiki/images/f/f1/070-8690-01.pdf
There may be older versions available from somewhere like the Tek museum, but I haven't looked there.
Chris