Arpro
Learn from this lesson. There is risk in ALL stock investment, esp. with the wild volatility in the market for about a year. However, in general, this is the level of risk, from low to high: blue chips, remaining listed stocks (found on NASDAQ, NYSE, AMEX), OTCBB (they are identified by "the symbol" + ".OB." These have certain SEC requirements to meet to be over the counter stocks. Finally, there is the highest risk stocks, the pinksheet stocks. Rarely do they get uplisted and do not have to supply hardly any information to the SEC. Their ending is .pk to their stock symbol.
Basically, you have stepped into something that you knew little about and was extremely risky. If you are to invest in pinksheets, get experience with much lower risk stocks FIRST. If you then decide to jump off a cliff with investing in pinksheets, be sure you are recommended by a brokerage house or you know the pricing activity and the company's history before you take the huge risk. I would never invest in a pinksheet stock, from my experience, unless I could literally throw the money away I was willing to invest in.
What you found with ARIO is typical of pinks.
James