Rome 6 June 2012
This part of my web is still under construction. I'll deal with this as soon as my thesis writing and postdoc search allow. Sorry!
Were you just curious about why a Venus transit is amongst solar eclipses? A Venus transit takes place when Venus comes in between the Earth and the Sun, exactly the same that happens with the Moon during a solar eclipse. The only rather obvious difference is that the size of Venus from Earth is so very small compared with that of the Moon. So you can think of a transit as a mini annular eclipse.
If you want to see one, you'd better have faith in science, for the next one will happen in 2117. But don't despair. Transits of Mercury are much more common. The next one will be in 2016. It is not the same as a transit of Venus, but get yourself a nice telescope and it will also be nice.