incase you didn't read the first thread, A. you need insane processor power to crack it. B. Anything you will remember about it will decrease the brute-force difficulty by a factor of 1000 or more. Note that if you remember nothing about your passphrase, it will most likely cost more then 700 euro of processing power to bruteforce it...
Yes of course I've read firs post of that topic, I'm quite sure about the password, I probably forget only symbols like ?=! or something like that, Just would like to try but don't understand how, i saw taht I've to run a script but don't understand where and how.
In regards to your second questions, is your Wallet completely synced? Which Wallet are you using? What version does your Wallet have?
I'm using Multibit 0.4.23 but don't understand how I've to check to see if it is completely sync with network.
