initially, i created an ID in skype, as well as password. but then, i forgot the initial password, and i have to create the new one, now the new one is quite long and tough to memorize. i wanna know what my old password is?
can or not?

You can always make a new one. Log in to your account on the Skype website and scroll down at the bottom of the main account page. On the "Account Settings" column choose Password "Change".