muad-db: If you are unable to answer a query or help someone out, please don't post rubbish. At each and every post you are first one to comment with your single line posts. It appears you just wait for something to get posted and then jump to post your "comment." Are you and Molten Metal one and the same person?
Edward: In answering your query, if you have Qatar work visa, just fly into Doha with a copy of the print out of the visa. The visa will get stamped on your passport at Doha airport. Just make sure that all details in the visa such as your name and passport number are stated correctly.