Yep, i Agree with Karl, its a pretty big job getting the engine out just to change the sump gasket.
just remove the bolts from the mounts, the ones holding them to the crossmember, then lift the engine so you can get the sump out.
Oh by the way its easier if the sumps empty.
If the gaskets just seaping a bit, just try some stp oil stop leak. Mine was leaking a noticeable ammount onto the garage floor, but I chucked some stopleak in when I changed the oil. Not a drop since, cost 6 bucks.