Ive done a quick search and cant find the answer to this:

i registered my nick on a server and i copied the log on detials to paste in a text doc for future refrence but accidently pasted onto a channel.

Now i was wondering if there was a way to change the password?

There is a way to every server but the problem is that each network has a different way to do this.

In most networks if you type /nickserv help you will find a way on how to do it (in some networks /nickserv help is not a valid command so if you dont get an answer make a new post with network name inside)

thanks alot, problem solved now