Like HappyFace said things would be a lot easier and faster if you were a US citizen. As a lawful permanent resident you still can sponsor your spouse. Here's something that can help you:

• If the sponsor is a lawful permanent resident, they may petition for the following foreign national relatives to immigrate to the U.S.:
  • Husband or wife, or
  • Unmarried son or daughter of any age.

In any case, the sponsor must be able to provide proof of the relationship.

Preference Categories

If you wish to immigrate as a relative of a U.S. Citizen or lawful permanent resident, you must obtain an immigrant visa number based on the preference category in which you fall.

People who want to become immigrants are classified into categories based on a preference system. The immediate relatives of U.S. citizens, which includes parents, spouses and unmarried children under the age of 21, do not have to wait for an immigrant visa number to become available once the visa petition filed for them is approved by USCIS. An immigrant visa number will become immediately available. The relatives in the remaining categories must wait for an immigrant visa number to become available according to the following preferences:

• First preference: Unmarried, adult sons and daughters of U.S. citizens. Adult means 21 years of age or older.
• Second Preference: Spouses of lawful permanent residents, their unmarried children (under twenty-one), and the unmarried sons and daughters of lawful permanent residents.
• Third Preference: Married sons and daughters of U.S. Citizens.
• Fourth Preference: Brothers and sisters of adult U.S. Citizens

for more info visit: uscis.gov and consult/hire a good attorney.........