I seem to have gremlins in my XOOPS 2.06 (www.maranoa.org.au)

Heres' a list - so I don't think it's module specific.
In AMS - I added a new section, and it took about 20 goes to actually get the permissions to take.
In XoppsGallery, I added a gallery, but it didn't show. Tried again - still no show. Later that day, tried again, and there they all were. Tired to delete, got down to 5 galleries. Tried to delete another, it jumped back up to 8 galleries.
In XCGal, added an image, and the thumbnail pointed to the wrong picture. Same module, added an album, no show. Tried again, no show. Later, all 3 were there.

It's probably a user problem, but I'm finding it very frustrating. Any suggestions?????
And if anyone sugessts upgrading, acn they please point me to diffinitive instructions on getting from 2.06 to the best, most stable version. I can't afford to bring the site down - and I have asked, and searched for upgrade info unsuccessfully in the past.

There are incremental upgrades located in the XOOPS download area. You'll need to go step by step from where you are to a version that is current. Probably will mean a number of upgredes.