Your site members should be able to play around with photos and albums, and waht else You did configure on Your site.The restrictions on Your family site only differs between members and guests. Some operations are reserved for site managers, if You configure the privacy settings. Just have a look to this.
The settings I described before are tree specific. So, if You have more than one tree on Your family site, You can set every tree to different restrictions.
If You restrict the tree 'edit' access to 'site managers' or 'only You', no invited site member can change Your tree.
No, You cannot prevent members from deleting fotos or any other content. But, if You don't want members post any contents on Your site, You can do it this way:
Go to Site Settings ... Contents ... Permissions
There You will see Can site members post content on the site
Set this to No- only you, the Site manager, can do this
This should work, I'm not 100% sure, but this is the logical consequency of a post forbidden setting.
One thing, I think, is important to know. If You close Your site in this way for Your invited members, it could be, You turn off the motivation in Your family, to help and support You with the family research.
Looks like another screw-up, I guess, Susan. I mean "bug". Here's what I see, sort of (the forum parser strips out line breaks):
Premium family site
Upgrade to PremiumPlus
Invite more family
View family tree
Print your family tree
Timebook is only available to PremiumPlus members...and you ARE one so you should have access to both Timeline and Timebook. (I don't have access; when I click the Timebook control it links to a page saying "Timebook is only available to PremiumPlus members. Upgrade")
Maybe they've put it somewhere else. A good place to look would be the Apps tab.
If you can't find it anywhere (and I suspect that's the case or you wouldn't be asking), here's my suggestion.
While we wait for MH to answer in the forum, If you haven't done these two already:
Try another browser if you have one on your system; see if it behaves the same (it should)
Reboot your computer (cold boot - shut off the power) - see if it comes back (it shouldn't)
Next, if you haven't heard within a day or two,
Copy your post and mine, and paste them into an email to firstname.lastname@example.org. Mention the results of the two above steps.
Post in the forum telling us the date and time you sent the email so we can all track the time it takes for you to get a human response.
You can enable or disable the Timebook, Timeline and other features by navigating with your mouse over your name on the top right of the screen > click on "Site settings" > click on "Content" > There you will have checkboxes to include specific features to the website.
A closer look at that link shows it to be five months old, so maybe the hiring blitz is over. Also, I found over 100 MyHeritage employees on LinkedIn, scattered around the world. Always fun to surf the 'Net.