Dear Draco,
Don't despair here. You finder is retained by two gnurled retaining nuts to the telescope tube I'd guess. Then there should be 3 alignment screws in the holder. As a practice, in daytime set up in the shade and find a distant target (lamp-post, radio mast whatever) Point the telescope tube roughly in the right direction by loosening the clutches and sighting like a rifle down the barrel. Tighten the clutches, and putting in your lowest power eyepiece see if you can line it up on that (or any!) prominent feature. Use the slow motion controls to bring it onto the (or a) feature. Now look through the finder (turn head on side , twist head etc
) and using the three (yep should be three) adjustment screws move it onto the target. The screws need to be tightened and loosened together and it does take some playing around. You will get it but do play in daylight, or if it must be at night try and go for the moon to start. Honestly though a Rigel Quick finder is the answer. They can be purchased in a number of places including
http://agenaastro.com/rigel-systems-quikfinder.html
For the counterweight, before buying an extension to the counter-weight bar, (do a search on the site for details), I made sure the counterweight was at the bottom, and just wrapped some lead sheet around it (available from Bunnings etc, but I had some spare anyway) and taped it on. Worked fine.
By the way a manual for the same Optical Tube Assembly (OTA) but alt/az mount is here and has some illustrations if yours lacks a manual.
http://tasco.com/products/manuals/Lu...076420Inst.pdf