did headgasket replace on 02 disco2, starts and idles ok (little rough, broken stud and exhaust leak on driver side exhaust manifold). no power and dies when tryin to accelerate in gear..... engine light flashing

 

Do you know what the codes are? Recently, someone had some trouble like this after doing head gaskets. He later noticed that he didn't quite put one of the injector harness plugs together all the way. I think there's one on each bank.
Check all your electrical connections and vacuum lines. Make sure they're all tight and you didn't miss any.

 

Was in a hurry tonight but found that I had a few spark plug wires out of order I was able to correct them and I have no engine codes now but have not had time to drive it on the road to see if anything else pops up I was getting cylinder misfires but those are now cleared... I would be a horrible mechanic

 

That will certainly cause some problems!