First off, I really had a hard time understanding you at all. Not only is it a rule to use proper grammar and punctuation, but it makes it easier for us to help you.
Secondly, welcome to the forums

Make an intro post to help us get to know you better. Also, take a look at the rules section, to prevent you from receiving any warnings
And for bolt action rifles, its trigger box, not gearbox. As for the problem, sounds like its slam firing. This is going to sound dumb, but did you remember to put the spring guide stopper back into the trigger box. Because in order to take the trigger off, you must unscrew the two screws and pull out the spring guide stopper. When re assembling, make sure to put the spring guide stopper back in.
If thats not the case, let me know, and I will try to think of what else might be wrong. And the rifle was working before you took it apart right?
And glad to here you are trying to learn your rifle. After some practice, you will get the hang of it. Check out Zulu's thread here for disembling:
http://www.airsoftsniperforum.com/phpBB/phpBB3/viewtopic.php?t=681
Fuzzy