If it helps, I make less than 35k a year.
While i'm not a CPA and not qualified to give personal tax advice, I have always found that information on Investopedia is very accurate and concise. They have the following link on Capital Gains that may help answer some of your questions: http://www.investopedia.com/terms/c/capitalgainstreatment.asp
In addition, I would recommend that if you are looking for the capital gains information for a specific investment account that you contact your broker and request a copy of your 1099 which will have all of the buy and sell data for the prior year. Best of luck.
In addition to David's response, you can use the following link to get more information. For tax issues I like to go straight to the source, which is IRS's website:
I am also posting another link which talks specifically about the 2013 rates, as these have all changed recently.
Hope this helps. Otherwise, my partner Rob Riedl is a CPA and you are welcome to give us a call, if you have a specific question. Our website is www.endowmentwm.com.