Best Practice for loading 40+ images dynamically

I have a monthly update that I’ll need to do to a site where a new Image, and link will be added to a scrolling navigation tab. I’d like to optimize it as much as possible, and make it as easy to update as I possibly can.

I reads vars from a txt file current that holds all the data paths, descrptions, and links for each respective image. The images are not in the relatvie driectory so I need to use the ufll URL to get to it, which makes is a little sluggish i loading. What I’d like ot do and the very least it having a loading message appear until all of the images load sccuessfully. The problem is that they load assynchronously and I’d like ot load as many as possible at onece. The images are thunmbnail 45x45 so that go farily quickly, I just think it looks messy having they spot in.

What would be the best way to apporach this? I thought of moviclip loaders, but how would know when they’ve all completed to continue?

Thanks!