You better read form 8863 from www.IRS.gov and its instruction.
You have to have qualified expense ( 1098-T from college);
you/your spouse or dependent's expense;
Your AGI is less than 116,000 if file jointly,
and you paid tax.
Hope Credit is for the first 2 years in college. Life-long education credit can be used for anybody. Hope credit is up to 1800 for 2008, I remember.
Hope this help for you.