If you can log into your eqemu forum account, you can go to
http://www.eqemulator.org/account/?LS and find a list of your loginserver names. (This is assuming you played long enough ago that your info is on eqemu rather than your p99 account.) From there you can change or reset your password.
If you didn't start that long ago, you can try
http://www.project1999.com/account/?LS
Please note that you must be logged in on the forums of the sites to see your loginserver info.