I am not Jewish. But here goes.
The 13 Principles of Faith
(Maimonides, 12th Century c.e.)
1. G-d is the Creator and Ruler of all things. He alone has made, does make, and will make all things.
2. G-d is One. There is no unity that is in any way like His. He alone is our G-d He was, He is, and He will be.
3. G-d does not have a body. physical concepts do not apply to Him. There is nothing whatsoever that resembles Him at all.
4. G-d is first and last.
5. It is only proper to pray to G-d. One may not pray to anyone or anything else.
6. All the words of the prophets are true.
7. The prophecy of Moses is absolutely true. He was the chief of all prophets, both before and after Him.
8. The entire Torah that we now have is that which was given to Moses.
9. TheTorah will not be changed, and there will never be another given by G-d.
10. G-d knows all of man's deeds and thoughts.
11. G-d rewards those who keep His commandments, and punishes those who transgress Him.
12. The coming of the Messiah, no matter how long it takes, I will await His coming every day.
13. The dead will be brought back to life when G-d wills it to happen.
Also the Messiah must fulfil the propecies as laid out in Hebrew.
1. He must be Jewish - "...you may appoint a king over you, whom the L-rd your G-d shall choose: one from among your brethren shall you set as king over you." (Deuteronomy 17:15)
2. He must be a member of the tribe of Judah - "The staff shall not depart from Judah, nor the sceptre from between his feet..." (Genesis 49:10)
If an individual fails to fulfill even one of these conditions, then he cannot be "The Messiah."
3. He must be a direct male descendant of King David and King Solomon, his son - "And when your days (David) are fulfilled, and you shall sleep with your fathers, I will set up your seed after you, who shall issue from your bowels, and I will establish his kingdom. He shall build a house for my name, and I will make firm the throne of his kingdom forever..." (2 Samuel 7:12 - 13)
4. He must gather the Jewish people from exile and return them to Israel -"And he shall set up a banner for the nations, and shall assemble the outcasts of Israel, and gather together the dispersed of Judah from the four corners of the earth." (Isaiah 11:12)
5. He must rebuild the Temple in Jerusalem - "...and I will set my sanctuary in their midst forever and my tabernacle shall be with them.." (Ezekiel 37:26 - 27)
6. He will rule at a time of world-wide peace - "...they shall beat their swords into plowshares, and their spears into pruning hooks; nation shall not lift up sword against nation, neither shall they learn war anymore." (Micah 4:3)
7. He will rule at a time when the Jewish people will observe G-d's commandments - "My servant David shall be king over them; and they shall all have one shepherd. They shall follow My ordinances and be careful to observe My statutes." (Ezekiel 37:24)
8. He will rule at a time when all people will come to acknowledge and serve one G-d - "And it shall come to pass that from one new moon to another and from one Sabbath to another, shall all flesh come to worship before Me, says the L-rd" (Isaiah 66:23)
They have no belief in original sin or hell. Anyone even non-Jews can go to Heaven if they lead a good life. The not so good go to Gehenna for a period of time before heaven. The bad go to the grave.
Try asking this question when it is not Shabbat, you will get more Jewish responces
Here is link for more info.
http://www.jewfaq.org/index.htm