sim reader is screwed

hi

i just encountered this site and u guys are doing a fabulous job.

i have an issue with my iphone from past 3 months.

i did not used it because i dont know how to fix the p[roblem.

the problem is that one of the strings in the sim reader is displaced from its actual position. when i insert sim tray the bottom part is broken and was struck in there. i can see the metalic part of the reader through the vent.

i think replacing sim tray will resolve the issue but i cant find a tutorial to replace it.

i really appreciate if some one could post a tutorial for fixing this.