~ Schedule D...the best way is to call IRS, schedule D section
if you call representative, there are choice that you'd like to ask (recording):
my broker is fidelity
i called IRS person a few years ago when i started tradinng more often.
if paper filing, the lady told me that i can write like...varies and one amount on schedule d...short term or long term since fidelity (or your broker) reports all detailes to irs before our tax filing.
if electlic filing, i print out the tax pages from my fidelity and bring it to my accountant. (i also get papers via us mail)
i strongly suggest you to call IRS ... they are very nice and very patient.
~ i hope this helps... =^.^=