about osx86 update and dual core

[LlF]

Hi, so iv got everything working now on osx, it is time to make it official.

however iv already deleted that partition otherwise id try it myself

here are my questions:

 

I can't update my osx version, (say from 10.4.7 to 10.4.8) within osx's software update, or can i?

what about minor updates? like iTune update?

 

my cpu is P4, xp task mngr shows two graph on CPU usage but cpu-z says there's only one core with 2 threads, and i heard that osx86 would only use one core, will i be able to use the full power of ly already weaky CPU?

 

also, when i install osx, i will wipe out completlly windows os on the machine, any reason from you that i shouldn't do that?