Greetings. Yes, your court order is effective 9 May 2008, unless it also says “nunc pro tunc to January 30, 2008” on the signature line which would make it effective as of January 30, 2008 despite the fact it was signed in May 2008.
No, the fact it was signed in May should not cause you any issues in the future as the order should clearly state somewhere in the order the date of the hearing (ie. January) and you can always argue to the judge at any subsequent hearing about the reasons why the order was not entered until May.
Unfortunately for you, and many others, there are a number of cases where orders are not entered in a timely manner.
Janet L. Gemmell