ActionScript 1/2 :: Loader Component Specific Sequence (External JPEGs)

I have multiple "Loader Components" placed in a grid that are working great for loading external JPEG's. However, when I publish my file the "Loader Components" load each image randomly (I assume because they load the smallest file in size first then next largest and so on). How do I load the content of multiple "Loader Components" in a specific sequence?

Here is the script I have so far:
////"Thumb1" is the instance name of the first "Loader Component" in the grid.
Next is "Thumb2", then "Thumb3" and so on
Thumb1.load()
if (Thumb1.percentLoaded >= 1 ) {
Thumb2.load();}
if (Thumb2.percentLoaded >= 1) {
Thumb3.load();}
if (Thumb3.percentLoaded >= 1) {
Thumb4.load();}
if (Thumb4.percentLoaded >= 1) {
Thumb5.load();}