would be custom coding needed.. also, i've watched photopost versions over the years and they went away from having all 5000 images in one directory..
broke it up into many more manageable sub-dirs.. and sub-subs
ubbt does this to some extent with the 3 types of images (thumb, med, full), but it would still end up being a huge ass 3 dirs of files in the end..
at some point, the ubbt gallery might consider breaking up the sub-dirs as well..
