Trying to save new files as whatever I change a cell as.

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I need to save a lot of files under whatever I put into cell B and C 2 (I merged the cells into one). How I would like it to work, is whatever I change that cell into, it will create a new save file under that cell name. I have never messed with macros before, and if I need to change it to being just one cell I can do that too. Also, please note that I have multiple sheets on this original save file. The sheet names are April May June etc. for the rest of this year, and I would like the name to change on all of those as well.

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Also, I have Microsoft office 2007 not 2003, but some computers that I will be saving this on might be 2003. If it has to be one or the other, do 2007.