Use your mover tool to arrange the hearts so they overlap each other.
In this example, I have all three interconnected. Study your hearts and imagine what they will look like when you are finished.
ONE STEP AT A TIME
IN MY EXAMPLE.

The top part of the blue heart will go over the red heart. The bottom of the blue heart will be beneath the red heart. Use your lasso tool (point to point, feather 0, antialias checked) to cut out part of the red heart. Start on the edge of the blue heart and draw across the red to point 2, clicking on the edge of the blue, then to point three, at the edge of the blue and on to point 4. Double click to close the selection. On the red layer, tap Delete.
The blue goes over the top of the green heart at the top. It goes under the right vertical edge of the green heart. Draw a selection on the blue, this time aligning your points with the edges of the green heart. Make sure blue is selected in your layers and tap the delete key.
Starting with the green layer, duplicate it twice. Rename the new layers to G1 and G2. Hide G1 and G2, and the Blue and Red Layers.
Use your magic wand to select the first green heart.
IN ANIMATION SHOP - select the glitter you want to use for the green heart.
Edit > Select All.
Edit > Copy.
IN PSP - right click somewhere on your workspace and select PASTE AS MULTIPLE IMAGES.
Foreground of your material palette, choose pattern, and select the first of the glitter images.
Floodfill Green layer.
Apply the Inner Bevel using these settings.
Hide Green Layer and select/unhide G1.
Change the pattern floodfill to the second green glitter. Floodfill G1.
Apply Inner Bevel.
Hide G1, Select G2
Change the pattern floodfill to the third green glitter and floodfill G2.
Apply Inner Bevel.
Close the 3 glitters.
Hide G2.
Select Blue and duplicate twice. Rename the new layers B1 and B2.
In A/S, choose the second color glitter.
Edit > Select All, Edit > Copy
IN PSP, Paste Animation as Multiple Images.
Repeat the steps to floodfill all three of the blue layers. Hide the blue layers.
Repeat the flood fill process with the Red layers.
You should have 9 layers, each with a unique name, each with a different floodfill.
Unhide layers Red, Blue and Green, hiding all the duplicated layers.
Select the bottom of the 3 layers and right click.
Layers > Merge Visible
Hide the merged layer. Unhide G1, B1 and R1. Select G1.
Layers>Merge Visible.
Hide the merged layer.
Unhide the last three layers, selecting G2 and Merge Visible.
Unhide all three of your merged layers.
Selections > Select All > Float > Defloat.
Image > Crop to Selection.
Resize your image to the size you want it.
Save your image as a PSP file, PSP7 compatible somewhere you can find it easily.
Close your glitter files in Animation Shop and Open your new PSP image.
Leave Animation Shop default settings. View in your browser.
Recheck the size and save your animation.