Avoid mentioning weaknesses. If you were fired from a job it should still be included in your resume. Just don't mention that you were fired. If it comes up in the interview, deal with it then. Remember to always tell the truth on your resume.
Employers often check out what is stated on a resume as well as a job application.
Resume Formats Resume formats vary greatly. However you do it, be consistent. You should keep sentences short, fewer than 12 words is best. Use standard, every day language. Be positive and honest at all times and try to stress achievements.