Yes, from Dubai to Lagos, both direct flights and conjoint flights are available on Sep.20, 2009.

Here are the flight schedules of three direct flights for your reference:
From Dubai to Lagos:
1)CZ331 0530/1030, provided by China Southern Airlines
2)EK783 0735/1230, provided by Emirates Airlines
3)EK781 1400/1855, provided by Emirates Airlines

For more, u can consult some local booking agencies.