Center content in loader component

Hi,
I'm trying to use the movie class loader component to set up
a photo gallery.
I want to center all of the images, but they are staying to
the top left.
Any suggestions?
Thanks!

cannot see any way to edit or delete posts so im going to have to add another one on to the end....
The insertComponent(component) method does not work. it simply adds nothing to the JTextPane. i looked at some other psots that suggested setting the text pane to editable, then adding then setting back to uneditable but that didnt work. i have a class that extends JFrame which calls the construction of the JTextPane
the JTextPane runs through a html file rendering itself as it goes, but when it gets to the image and calls the method insertComponent(image) it just doesnt show up in the JTextPane whe nthe JFrame finally opens up.
If i use the method add it shows up fine, just not centered where it should be. Any ideas?

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