Toyota Repair: 22R Camshaft timing alignment, crank pulley, timing chain replacement

Question
1987 pickup w/22R engine

I am in process of timing chain replacement.  I'm an amateur who studied carefully before starting, and have taken my time to do it right.  After a week, I've finally got the timing cover and oil pan back on now, and now notice with the crank pulley on that the cam sprocket and dowel aren't @ 12 o'clock when crankshaft is @ TDC.  Photo is here: http://s32.photobucket.com/albums/d12/ccfreecycle/?action=view¤t=DSCF0007....  I swear that I placed the lower bright link over the crank sprocket mark, but I can't double check without taking timing cover and oil pan off again (because I can't ID bright link through hole at oil filter), which I hate, hate, hate the thought of doing.  I ran this by the helpful machinist at engnbldr.com (from whom I bought the kit) who said that the photo looks fine.  He said the timing mark on the cam sprocket should be ~11:30 due to the tensioner, but that the cam dowel is @ 12 o'clock.  Well, I told him that the cam dowel isn't @ 12 o'clock either, but he insisted it was.  (It is actually nearly aligned with the cam sprocket mark, though not as noticeably off 12 o'clock since it's closer to the center of the circle.)  Also, the cam sprocket mark looks further off than 11:30, more like 11 o'clock.  I found this other photo and description on the web, which appears to confirm my suspicion that my chain is one link off at the crankshaft.  http://home.earthlink.net/~twopapa/toytech.htm (It is the 2nd photo from bottom, in the topic about installing head with the timng cover on).  So, my 2 questions are:

1. Is the camshaft dowel hole/pin supposed to be @ 12 o'clock when the crank is @ TDC?
2. If #1 answer is "yes," is it possible to move the chain by a tooth on the crank gear without taking the timing plate off?

Thanks much

Answer
In the first picture the timing is one tooth of on the top sprocket, the dimple in the sprocket should line up exactly with the triangular mark on the front rocker arm shaft support housing, the dowel pin should be as close to straight up as possiblebut its more important for the mark on the gear to be lined up with the mark on the housing, the sprocket can only go on one way to the camshaft. Yes it is possible to move the chain without taking everything off. With the crank pulley at zero #1 tdc remove the top gear bolt and pull the gear off, rotate the cam until the dowel is straight up, collapse the tensioner by pushing it in with a large screwdriver, move the upper gear one tooth until it lines up with the mark on the front support and put the gear back on the cam, it can be done, I have done it many times but it may be  little trial and error, the important part is that after the tensioner is released everything lines up, keep in mind that rotating the engine with the cam gear off or the timing way off can cause the valves to bend so be careful not to that.