I have always wondered this... Were Alice is Married to Jasper did she take on the "Hale" Name? Because Rose had to be a cullen because Emmett is a "Cullen"???

Alice & Jasper are married, and so are Rosalie & Emmett. Rosalie's maiden name is Hale, so she kept it because they're supposed to be high school kids. Jasper took on the name Hale because both Rosalie and Jasper are blonde, so people think they're fraternal twins.

well technecly yes!!! but as no one at school knows that they are married means that she is known as cullen and rosaline as hale. does this help?

Well there has never been anything written in the books about Jasper and Alice being married but yes, she would probably take on the name "Hale".
Rosalie is known as "Cullen" but for the high school charade she's a "Hale" so when she and Emmett married, she would take on the name "Cullen".

No i dont think so because if you get any thing about Alice it says Alice Cullen