Specifically, I'd like to switch the order of these icons.  (For me, they seem opposite of what I intuitively expect.) 

Lower Selection to Bottom

Lower Selection One Step

Raise Selection One Step

Raise Selection to Top

I know in the 1.1 beta version they switched these and I've been playing in the beta version, but have found  that customizing in either version (1.0.2-2 or 1.1) is creating issues when I'm switching between versions.  So, I've decided to go back to using 1.0.2-2, but would love to switch these icons up.  TIA.

Hi Wilma,

I do not know how easy you will find this. But you posted it in the advanced forum, so I think and hope you can handle this.

But it is possible to change the user interface by modifying a text file.
After that, you place it in a newly created folder in the user's preferences,  called ui. (ui stands for user interface)
Here it was discussed earlier: https://inkscape.org/forums/questions/how-to-customize-toolbars-in-inkscape/#c19348

Kirstie,  

Thanks. I've looked at that one, and it's not the toolbar(s) I want to adjust.  The one I'm looking for is the selector-toolbar.  There's a mention of it, in there, but it really doesn't help me find it.  Appreciate your input.  

Hi Wilma,
Yes, you are right. I have searched a bit better now and could not find that option in the files either. I am sorry about giving you false hope :-(
There was talk of a textfile with this name, but I cannot find teh file on the internet nor on my pc..
select-toolbar.ui

Hopefully in the future there will be more options to adjust the menus and toolbars.