The 2013 annual report to congress by the national taxpayer advocate is available for download from the irs as are tax forms.
The report to congress has a section devoted to:
MSP
#24
Digital Currency: The IRS Should Issue Guidance to Assist
Users of Digital Currency
...
It is the government’s responsibility to inform the public about the rules they are required to follow.41 The
lack of clear answers to basic questions such as when and how taxpayers should report gains and losses on
digital currency transactions probably encourages tax avoidance.
Many law-abiding taxpayers want to comply and to distinguish themselves from tax evaders.42 Some are
frustrated by the IRS’s lack of guidance. According to the summary of a book that purports to identify
bitcoin-related tax issues:
The IRS is famous for expecting people to comply with tax rules that aren’t even written yet.
And, they have given no indication that they are going to help Bitcoin users out any time
soon…. Because Bitcoin is new technology and not easily defined, in a legal sense, this will
allow you to be much more creative and flexible and legally reduce your tax liability.43
Okay, I know it's off topic but this is nice. If you don't want to burn out your printer and spend wads of cash for toner, or if you don't want to drive to an IRS tax assistance center (my closest are in Atlanta or Columbus), you can get hard copies of IRS documents by searching and ordering online. First one finds what documents one wants then searches on this page and then mash the button for place in cart. Then go back and find additional forms and repeat then go to check out. Forms arrive in 10 days. Best of all it's free. For the last two years I've use the hard copy 2011 form 1040A instructions booklet as a table mat on my desk on which I place hot plates, i.e. breakfast, dinner.
http://www.irs.gov/uac/Forms-and-Publications-by-U.S.-Mail