(Topic s/b) General iSeries software/support questions

(One day I'll remember top change the topic)

Alright, here's a broad general question.  I've been a simple developer for
so long that I know very little about the brave new world of software
delivery and support options.  I still use faxes for ordering PTFs (but at
least I order CD-ROMs, not tapes!).

There are various ways to get software from IBM, ranging from faxing PTF
requests (my personal favorite) to iPTF to the Software Mall.  There are
also various support options, ranging from Software Subscription on to
something I recently heard about called "Internet Options Support".

Can anybody break down the differences between these various entities?

For example, let's say I want to upgrade to the latest version of WDSc.
I've got software susbcription.  What do I do?

Or another example.  I've got Tomcat installed and I need help configuring
it.  What level of support do I need to have to get support from IBM?

Enquiring minds want to know...

Joe