Hi, welcome to the EQ forums! I’m afraid I personally don’t know anything about the state of the old downloads, but I have forwarded your question to people who might. I was thinking that it might be possible to convert a newer world to 1.7.10, but sadly it seems that the Amulet Editor only goes back to 1.12 and Universal Minecraft Tool to 1.8. I hope to get back to you on whether we still have the original 1.7 files as soon as possible, but other staff are quite busy right now.
Alright thank you!