How to . . .

CHANGE THE ORDER OF ALBUMS

Pictures in Albums are displayed in the alphabetic order of the image's filenames but this isn't true of Albums in a Collection. Their sequence is stored in a file.

For the main collection of Albums in B7E4A7B3O8A0C/ the file you need to edit is called 'albums.php'. For each of the others
B7E4A7B3O8A0C/Miscellaneous/
B7E4A7B3O8A0C/Miscellaneous/Training_and_Annual_Refresher/   and
B7E4A7B3O8A0C/Uniforms/
you need to edit the index.php which resides there.

In that file, an array is declared like this:
$sections = array(
"Aircraft",
"BACCES",
"BEA_Football_Teams",
"Cabin_Crew_in_uniform",
"Cabin_Crew_not_in_uniform",
"Crew_Reporting__Tristar_House",
"Heathrow",
"Miscellaneous",
"Posters",
"Training_Courses",
"Uniforms");

To re-order the display, re-arrange this list and then make sure your changes have preseved the punctuation.

In the list it must be
"folder_name",
and only at the end of the list it must be
"folder_name");
like this if, say, reversing the order:

$sections = array(
"Uniforms",
"Training_Courses",
"Posters",
"Miscellaneous",
"Heathrow",
"Crew_Reporting__Tristar_House",
"Cabin_Crew_not_in_uniform",
"Cabin_Crew_in_uniform",
"BEA_Football_Teams",
"BACCES",
"Aircraft");