Migrants to IJ, 2007

I was expecting that, to be honest :)

Open this code, instead, and transfer it to your layout layer. Save and compile.

Once that's done, go to LJ's Your Layers and find the theme and user layers you use, under Child of Layer #aaaaa: 3 column. Open both in raw code.

Go back to IJ's Your Layers and create two new layout-specific layers, one theme and one user, for 3 column. Copy paste your LJ layers in your IJ layers.

If you get an error message, it'll most likely be because you pasted the user layer in the theme layer or the other way round :D If it isn't, then paste layerinfo source_viewable = 1; at the top of the LJ layer that's posing the problem, and report the url to me.

Once you've saved and compiled everything, go to Your Styles and create a new style. Choose English as the language, 3 column as the layout. Save changes. Then choose your new theme and user layers, which should be the only one available anyway. Save changes. You'll be sent back to your style page, so click "Use" for the new style you created, and reload your journal :)