If it were me, the first thing that comes to mind is that I would give meaningful titles to each of those pictures.
I have no interest about your topic, but it could be interesting if when I hover over the images, the titles would relate to the images: numbers don't do much to describe.
Also, I would try to organize the huge number of photos into groups.
For example, (me not knowing any thing about your topic so you could come up with better categories, but me:) I would choose say 6 or 7 sort of categories: Red bikes, Green bikes, yellow bikes, blue bikes, pictures of people, and so one.
So then I'd choose one best photo to represent each group. That pic would link to the other photos using pagination which is different from the read-more tag.
You could use windows live writer (I'm a mac person, but it sounds from other volunteers here that wlw can do all sorts of magic) to make tables instead of sing the undeveloped gallery "feature".
Or you could make draft posts for each of your groups to attach your relevant pictures to each then use the gallery "feature" to put your pics on the different "pagination" pages.
Perhaps I'm not describing what I mean very well.
But that mass of pictures with no titles or explanations is absolutely useless to allow anyone to know what you are showing. It is difficult to look at. It is almost impossible to distinguish one image from the next and to understand what they are about.