Hahaha, do I come off as a lady? That's funny because I'm actually a guy. Anyways, I think I see now why some people get mad at my initial response because I have looked through the rest of the allnurses site. I can see that a lot of people are having trouble finding jobs, which I wasn't aware of how bad it was for this many people. In any case, you've asked a few questions, so here are your answers (this is my nicest and least offensive tone that I have for those out there that are easily offended).
As for how many months of ICU experience I had when I gained accession, I had 6 months of experience. I had a total of 13 months when i began my service. Now it is important to remember that as time goes on, the budget for nursing in the Navy decreases and the obstacles to getting in appear to be increasing. Therefore, please get your CCRN and TNCC before you apply because you'll be much more competitive that way. The board recognizes those two things for sure and they understand how they set you apart from your peers.
My timeline is as follows: I put in my first application as a general nurse accession in December 2010, which is right after I graduated and before I had my license. I found out in February that I was not accepted. I put in my application in May of 2011 as a critical care nurse. In June, I was approved by congress as a commissioned officer in the United States Navy, however I didn't find this out until October 2011 because of the possible government shutdown. I received orders November 2011 along with my formal commissioning. I went to ODS on new year's day 2012 and I now work for the United states Navy as a critical care nurse.
With the critical care application, there are advantages. One of the advantages is that you can re-submit it every month. I think with the general application, it is only twice a year, once in August and once in December. I'm not entirely sure about those facts on the general application, but I know for a fact the critical care application is on a rolling basis.
Another tip I have for you is that if you have ER experience and you want to get in the navy, get your CEN. That will also help you. The Navy has different classifications for specialty nurses with experience, certifications, master's degrees, etc. The only thing that would beat out that CEN in your emergency specialty is a master's degree in acute care. In case I didn't make myself clear, emergency nursing is a specialty in the Navy. On that note, obtaining your med/surg certification would also be helpful. Med/surg nursing is also a specialty in the Navy. If there are any other questions you have, just let me know.