I think you are doing something right now, so it’s urgent to know the protocols for your experiments. am I right?
You can find PCR and its related protocols over here http://www.lab-manual.com/lm_013.htm
There is another place you can find DNA, RNA, protein and their related, such as molecular cloning background and protocols. http://www.e-biotek.com/ebiotek_304.htm
In addition, you can easy find some ebooks and handbooks at above links. Let me know if I can help further.
Good luck.