"The law" is a synonym for the Torah.
Follow the law and do what you are supposed to.
Yes. They still do.
Orthodox Jews follow nearly all the laws. Conservative follow some, but not all. Reform Jews follow little or none of the laws.
Jewish law does not allow eating pork, but not all Jews follow this law.
They're supposed to......
Do what you are supposed to do follow and obey the law.
The Mosaic Laws are the laws that God gave to Moses. Jews are supposed to follow these laws to the best of their ability as a guide to being a good person and a good example to the people of the world. Jews who strictly follow the rules are simply religious Jews.
If they follow Jewish Law, then they are bound by the same Laws as everyone else. If they do not follow Jewish Law, they are not so bound. Reform Judaism gives its worshipers the choice of whether to follow Jewish Law if they feel that it enhances their spirituality.
Yes, for the most part, that is true.
The Torah only requires Jews to follow the law of the Torah. According to Judaism non-Jews are obligated to follow just the 7 Noachide laws which are described at http://www.answers.com/topic/seven-laws-of-noah
Yes there is a relationship between the old testament and the law , as the book of Moses Leviticus is full of laws the Jews had to follow.
There were change in laws because nobody was doing as the law said so they changed the law to make the Jews in the Holocaust do without protest and the Jews would have to follow these rules so they would not get the punishments for example death