The 2nd half of this article appears to have a good wrap-up of several exchanges' situations:
http://www.ft.com/cms/s/0/b7ae1ea6-76ce-11e3-a253-00144feabdc0.html#axzz2rSvfzwc7
that's weird, neither do I. I'll put the main points here (article dated Jan 6):
One exchange, BTCtrade, has continued using a third-party payment provider even though the central bank banned such links with Bitcoin exchanges. A customer service representative for the exchange said its payment provider had yet to receive a formal notice from regulators and so remained active.
Other exchanges have looked for loopholes. Huobi, a Beijing-based exchange, allows users to make direct deposits in its own corporate bank account or even the personal one of Li Lin, its founder, with the company then brings the money on to its trading platform.
“We are a company and we have a business selling a product, and we need to settle accounts. This is totally legal. Yes, we can’t co-operate with payment providers but we can still conduct our own business,” Mr Li said.
OkayCoin has tried both approaches. It has worked with 95gateway.com, a small payment provider still willing to do business with Bitcoin exchanges, but this payment company has struggled to cope with the volume of transactions. At the end of December, OkayCoin created a corporate account similar to that of Huobi to handle deals. “For the two weeks that funds could not be added to our exchange, it was as painful as sitting on a thorn. The days went by like years,” it said in a statement on its website when unveiling the new corporate account method for transferring funds.
BTC China is beginning to fight back. It has opted not to use the corporate account transfer method out of concern that regulators might deem this to be the same as using a third-party payment provider. However, it has created a voucher system that allows people with money on the exchange to sell the right to that cash to people who want to buy Bitcoins
TL:DR The larger exchanges seem to allow direct payments to their corporate accounts, but as this is a slow process it's probably only attractive to speculators & is killing any chance of using BTC as a means of payments for goods and services. If people really want to buy BTC it does appear they can though. The article says nothing about how to cash out though.