Galatians 3:16 regarding the singular "seed"

Sorry I was not being clear regarding the seed.
The arguments in the following link give a better insight:

http://hermeneutics.stackexchange.com/questions/8835/how-to-save-paul-from-the-galatians-3-seed-vs-seeds-argument-blunder

Since we will probably be studying Galatians:

http://www.scripturetruth.org/biblestudies/galatians/timeline.html

http://hermeneutics.stackexchange.com/questions/176/is-pauls-visit-to-jerusalem-detailed-in-galatians-2-the-jerusalem-council

probably not