Reboot...
check the following web page out. It gives information on help you can get from the court in starting a court case "pro se" (which basically means you will be representing yourself without an attorney)
http://www.nycourts.gov/courts/nyc/civi ... nter.shtml
It would be best if you could sit down with the clerk in the pro se office who will give you the forms and explain the steps you have to take. I dont have my paperwork in front of me, but from what I remember, you have to write out a Notice of Petition, a Verified Petition, an Order, an Affidavit of Service, Request for Judicial Intervention(RJI), Application for Index Number and Certification of Section 130-1. (The last four are actually forms that are the same from case to case...it is the first three which have a particular format to follow but differ from case to case - but Im sure they have copies on what the format should look like.).
There are also rules you have to follow on serving the NYS Dept. of Health and NYS Attorney General. I think it all costs about $300 when you buy your index number and RJI.
If all you have to do is change the one document, count yourself lucky. I have over 25 documents with more than 75 errors that need to be addressed.
You may feel overwhelmed by all the steps you have to follow but once the Pro Se office helps you out, it will all make sense.