Working Old School Loader?

Hello,
I've been trying to make myself an Old School (v18) retro for personal use.
(Yes, I know they are outdated but I'm old and like the nostalgia haha).

I've been trying to use Creador de loaders Online - HabboLoader as this used to work great, but now it doesn't seem to - it loads Shockwave and everything just fine, but then it's just a blank black screen.

So, in short, I was wondering if anyone knows of a currently working Loader Maker/Code, or how to fix the issue with the one I've been trying to use. I have seen someone say it may be the DCRs, unfortunately I don't know enough about this to know how to fix them.

Although I've been a long-time lurker, this is my first post, so if I have broken any rules by posting this, I'm very sorry!

Thank you,

Elle