Konstantin K

OK so right now I'm trying to understand Albert Einstein's general theory of relativity.Time dilation under the influence of gravity makes perfect sense. I can't quite wrap my head around an increase in mass under the same influence, but I can take it as a given. But I'm failing when it comes to understanding gravity as a bend in spacetime.

A documentary I've watched showed an analogy in which our three-dimensional reality was projected onto a two-dimensional plane and in that analogy they used the third dimension to visualize the bend around objects of mass. So am I correct in assuming that if a 2D spacetime is bent in a third dimension, our 3D spacetime is bent in a fourth spacial dimension? When I fall while skydiving, am I really gliding down fourth-dimensional chute?

If that is indeed the conclusion to be drawn from Einstein's theory, why is he commonly just credited with discovery of the fourth dimension as time?

Thank you.

I know, Yahoo! probably uses it's own professional script. The question is more what CMS would be best for me to use to build something like the Yahoo! Homepage with the news in lots of categories, the connected interfaces with facebook, flickr, games, weather, ... excluding specific complicated things like the whole search engine, web-mail, messenger, answers and so on.