Ok, here is my problem of the day. I am working on fixing up my '77 raleigh super course, and I am having an issue adjusting the the front and rear derailleur. First things first, when I change gears using the front derailleur the chain drops directly between the the two front chain rings. Relevant information: The bike is upside down as i do not have a repair stand, Front derailleur has been removed for cleaning and then reattached, the bottom bracket and chain rings were not removed for cleaning. I have oiled the chain with finish line wet chain oil.

Only thing I can think of is that the chain I purchased in too thin, I did a measurement of the old versus new and there is a 2mm difference. I thought that they were all the same dimensions for 10 speed chains. Here is a link to the chain that i am currently using on the bike: http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

I really need help with the above issue, but also looking for suggestions here too:
Second issue, related to derailleur. I have suntour bar end shifters, and everything is working well enough in the back accept for the fact that it skips gears at times. Is there an adjustment to look into to fix this? Also, I noticed that it takes about 3 clicks of the shifter before changing gears, and then about 4-5 clicks for the last gear, if thats relevant. any thoughts?