I just found an ad for a legal secretary position at the same firm that I had applied to a month ago.  They did send me a letter thanking me for expressing interest but the had filled the position for which I applied, will retain my resume for six months...contact if you would like to update your resume during this time.  I would like to express interest in this position but I have some reservations.

My question is, what do I say in my cover letter?  That I recently applied there and would like to be reconsidered?  My resume is the same now as it was then so I really have no updates.  Could it be the same position they had filled and the person didn't work out or is it a new position?  I wonder if they had my resume on file, why wouldn't they contact me?  I have had the happen in the past.  I had applied to a job and it was filled.  A few months later I received a letter from them stating they had another position opened and to contact them if I was interested.  I certainly have nothing to lose by applying again, just need to know how to work the cover letter.