When I drive up in an incline she is fine, when driving flat, from 20-40 rev's high, then I let goes of the gas, then goes into gear

actually as long as you don't get about 60 mph driving it in 3rd gear is fine. but this is where a good scanner hooked up to make sure the overdrive button is working would help

change filter could help for a minute but clutches are fried in drive

No driving will only further damage the parts that are bad and could damage other parts making it even more costly. and it sounds like tranmission problem.

Usually a bad idle air control valve. Read this post on IAC valves
High idle rough idle Ricks Free Auto Repair Advice

Do you mean start the car in drive? if so that problem is inhibitor switch. Other shift problems can be caused by TPS (throttle posistion sensor) if applicable

If you car has been sitting for that long of a period it may have water in the gas. Water is heavier then gas and will block your fuel filter which will cause you to loss power because of lack of fuel, as the water runs down/off the filter it always gas through then will block it again. Try some stp fuel treatment, read bottle to make sure it drys up water in the gas. Add some more gas after emptying the fuel treatment to your gas. problem should clear up.

the gearbox is a "fuzzy logic"system.gearchange depends on accelerator pedal position/revs/load.if you drive without depressing the gas peddle more than a third down you should find all gearchanges much smoother.(if you drive with gas peddle almost hard down all the time yhe car will hold gears longer...poss 4500 revs or more......

2.2td estima enima,the auto gearbox stopt change gear from 3 to 4,can somebody help me please?

the transmission is fine its the springs in the preasure plate that have shrunk and the clutch needs to be replaced.
I hope this advice helps.
can u rate the advice please