I know some nurses who volunteer in a nursing capacity, but with stipulations and without experience it might be difficult to find an organization or clinic to take you--and your monitoring program may not let you volunteer anyway. I think you might have more luck looking for a non-nursing volunteer position--jdub6 had some good ideas. Personally, I would hesitate to work in any capacity--paid or volunteer--without getting the OK from my monitoring program; they would probably never find out, but if they did that could be grounds for immediate expulsion (in my state's program, they were quite explicit about their zero tolerance for working [and, I would assume, volunteering in a healthcare-type field] without their approval). hppygr8ful is right--get permission, because you probably can't expect forgiveness if you are found out.
As far as working for pay, don't give up without at least trying, OK? Someone might be willing to take you on as a graduate nurse--you never know. I don't know what you mean by stipulations--they might not be as bad as you think. Some places really need nurses, and if you really want this (and I assume you do, since you're sticking with the license, encumbered though it may be), get out there and sell yourself; talk up the positive aspects of the situation. How has this strengthened your resolve to pursue nursing? Why are you willing to stick it out with this added difficulty--why does it mean so much to you? What has your recent experience taught you? How has it made you a better, stronger person?
Just some ideas. Keep us posted!