need help with wc3

When i get done with quest 2 it takes me right back to the start.
I have done it like 4 times now!

When you say Quest 2 do you mean MISSION 2 of the Orc campaign of Reign of Chaos? If so, then there are ONLY 2 orc missions in RoC and then you MUST play the HUMAN campaign next then the Undead then the Nightelf. In the old beta of WcIII you were able to play I believe 4 Orc Missions. But playing the second Mission over and over is not going to get you any further, when it takes you back to the Startm please notice the screen which should then show a Footman standing in front of what looks like a large castle, then the button for the HUMAN campaign SHOULD be viewable.

If this does NOT solve your problem, could you please very specific about your question

Thanks for the help.