Greetings.
I am a voluntary webmaster for an industry association's website with the following:

Joomla 1.0.4 Stable

Php 4.4.2

CB 1.0 RC2 (200 members)

JACLPlus 1.0.4 (we have an exec committee and sub committees requiring access to confidential discussion)

JoomlaBoard Forum 1.1.2 Stable

ReMOSitory 3.24

I would obviously like to get the site updated to 1.0.10 asap but I figured that someone could perhaps throw in some advice before I proceed...

... in particular with relation to the sequence of upgrading the various components listed above

... and also perhaps the suggestion of starting afresh with Joomla 1.5 Beta(ie. would this still allow me update to 1.5 stable versions later)

Any advice would be gladly received and appreciated.

Thank you.