Divorce

Hi everyone, I have been separated 7 years now and I would really like to get a divorce but can't track my ex down, when I contacted a solicitor he gave me a quote of approx €6000 which I just haven't got, I have also contacted diylawyer.ie by email to see if they can help me and they more or less informed me that everyone can be found, so I emailed them again to ask can they help me fine him & I am still waiting on a reply a few weeks later, also I have contacted the courts for info and they have advised me that I would have to granted permission to put an ad in the papers to try & fine him but that will cost about €2000 which I just dont have, so I'm really feeling deflated at moment and I was wondering is there anyone out there that can help me or advise me on how to find my ex as I just can seem to find anything on the internet about him, hoping someone can help PLEASE, thanks...