Hi.............As far as I am aware, you just need to rename one of the yearly templates that you may have (depending on were you got the program from) to 2014.php.xml Then edit it as below......
<size>600, 400</size>
<start>year=2014, month=1, day=1, hour=0</start>
<stop>year=2014, month=12, day=31, hour=0</stop>
<xformat>%b</xformat>
<xlabel>%Y</xlabel>
<dateformat></dateformat>
<plot>
<title>Temperature (°C)</title>
etc..etc....
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I use "nano" for this. Hope this helps....
Geoff.