Is my recruiter screwing me over?

I joined the navy back in early July 2009. I was going to be a corpsman but at MEPS they said I couldn't because I had two MIP's. So instead, I had to pick from a certain list of rates that were in my "score level" (btw I got a 78 on my ASVAB) Because i really wanted to be corpsman and wanted to leave the MEPS station I chose aerographer's mate thinking I could change that rate later on before I shipped out. Well now it is January 2010, and still every time I talk to my recruiters they say they are trying to call around to see if any seabee rates are open (that is the rate i want) only to be told nothing. I am just wondering if they are trying to stick me with this rate because that is what the navy needs right now, and because I have I have a higher asvab score than what is need to become a seabee. Do you think they are just playing this off like they are actually trying to get me into the job i want, but in reality not? If you believe they are, should i go talk to some different recruiters? I ship out this July. Your help would be deeply appreciated.