trans problems

Look .... ..... ..... this car is ticking me off . I have a 94 z 28 camaro .. That has a 4l60e tranny . I had to replace it . The trans that I am replaceing it with is out of a 94 trans am .... now .. I put the tranny in and bolted everything up . Fluid level is correct now ( thanks Ridgerunner) but the problem i had befor was that when it shifted from 1-2-3 it was fine . When it wanted to go from 3-4 it would not . It jumped from 2-4 grand and reved up? What would cause that . and now after the trans fluid warms up it wont allow it to go into any gears . I put it in drive reve it up still nothing over and over. What is the problem .I would really like some help on this .... I don't have enough money to go buy another trans ... so i must work with what i have ... I do have msn and aol so u can add me to chat quicker .. .Thanks again ..... Should i replace the overdirve soleniod and what about the valve body ????????? Help ..