Just open up an account at Fidelity, Vanguard, etc. Tell them you want to roll it over and they will help you with the investment options. You should probably do some research and familiarize yourself about retirement investments. You may need to go in their office, maybe signs some papers, notarize things and they will contact your current account and take care of everything. Just make sure that the check is not made out to you, but to the new investment account. If by chance they make it out to you, just don't cash it and return to them. Because IRS will tax you for interest and penalty.