To make it quicker and easier to import the exact ImageCache presets used, I've created a tiny module which will automatically set up the following presets upon install:

• fullsize-lightbox (Scale, 900x650)
• fullsize-page (Scale, 550x550)
• photoalbum-listing (Scale And Crop, 130x90)
• photoalbum-mini (Scale And Crop, 80x80)
• photoalbum-small (Scale And Crop, 190x130)

Install the module if you'd like to automatically create the presets, or you can create them yourself by hand if you prefer. The photoalbum-listing and photoalbum-small presets are connected to specific sizes set in the CSS, so if you adjust the ImageCache settings, be sure to also adjust them in the CSS. I'd suggest leaving them as default until the gallery is functional, then go back and adjust the sizes if desired.

After the install check that the presets have appeared at Administer > Site building > ImageCache (admin/build/imagecache). If so, you may uninstall the module as it is no longer required after the import has successfully completed.