No.
heck no
you can do it on itunes
The old version of iTunes does not need to be deleted as the new version will update it to the latest version.
When installing a new version of iTunes only the iTunes software is updated your library is not touched.
The apps should not disappear from your iTunes account.
itunes
no
itunes
You only need to download itunes again is if you deleted it, got a new computer, or are needing to upgrade it to the new 10.01.0
no it doesnt trust me ive got it my computer : )
A new version of iTunes only updates the iTunes software and does not touch your music/movies library.
yes but you have to have itunes money