i did exactly the same as youve mentioned in your post, i can confirm that it does not affect the installation and yes once the software has been installed it does indeed read ‘installed’.
I must admit, having only just installed the software myself, it does cause the appletv2 to crash on more occasions than i experienced just running the jailbreak and XBMC. Not sure if im just ‘unlucky’, but thought id mention it!!
yeah, to be honest i only got the software to stream video i had on a hard drive that the original appletv 2 did not support. Which it doesnt even do, and tech support does not seem forth coming. XBMC gives everything else i need, very disappointed in the paid software and support being worse!!