here is a link to your scope -
http://209.85.141.104/search?q=cache...ient=firefox-a
Usually anything japanese is good quality and it should be ok for you to have a look around the sky and test the waters. The refractor doesn't really go out of alignment / colimation - what did you clean the front lens with? Though i doubt you have done major damage as lenses were not coated as much as today.
Have you las cleaned the eyepiece /diagonal with something (get len cleaning fluid from good camera store/telescope shop)
When trying to focus what pieces do you have attached to the back of the scope?
Can you see the shape/light of the moon?
Does it come in/out of focus at all - or just lok the same?
Does the focuser move in/out hen you are adjusting it?
Genrally it is easier to set it up during the daylight hours when you can see everything clearly. Pick a target about a km away - and try with biggest mm eyepiece & the diagonal(right angles piece) to focus on the object.
Let us know how you go. Good luck