I have a Skype account, and when I try and dial the number, it tells me I > have to buy Skype credits. What's the secret? BTW, to dial a + I held down > the "operator" key with the left mouse button.
To dial a plus, I'd press the plus key on my keyboard.
Where are you trying to call? If it's outside the US and Canada, you do need to buy credits because it costs real money.