hey can anyone tell me how exactly i change my forum name?

i looked at this thread http://bbs.tynon.com/showthread.php?...our-Forum-Name but i must be either not doing the right thing or not real switched on upstairs.

i figure i need to enter my password to make some changes, but when i do it tells me 'the password i have entered doen not match your current one'. which is ridiculous, how else can i even post in the forum without firstly signing into my account? to do that u need to enter a password.....

anyways, am i doing something wrong or is there something else afoot.

any help would be greatly appreciated.

thanks in advance