Google Analytics and Studiopress and subdomains

[mikemcsharry]

Hello Folks,
Can anyone point me to any legible inforamtion on how to set up goole analytics with subdomains.

I have google analytics working nicely on mikemcsharry.com then I made a subdomain roundleics.mikemcsharry.com and I want google analytics on there. (genesis is so simple to sort the code out with - brilliant ). Both sites are on genesis themes.

Do I need to remove the original code from the top domain and get google to regenerate code. the sample 'code mods' shown on google dont correspond with the codes I have. if I have to regenrate google code, is there a way to do it?