I would like to know what my ACP update options are?

ACP has been running fine with only an occasional hiccup. However this past Thursday I experienced a failure which could not be replicated, thus I marked it down as one of those pesky hiccups and moved on without further investigation. However, it did prompt me to check what version of ACP I was running. Much to my surprise I discovered I was running:
ACP Basic
Ver 8.0 build 6
Service Release 1

Probably a pretty good testament as to how stable ACP is. In any case, It's pretty obvious an update is is order

I would like to know what my options are for bringing my install up to the current release?

Thanks

Jerry K