I was just wondering if the official IC2 download site could be added to Aternos as a supported website. This is because CurseForge does not have a 1.6.4 version for IC2, despite IC2 being created before 1.6.4. I needed it for a server, and I don't think 1.7.10 will work on my PC. I kind of got 1.6.4 working, albeit with lag. Here is the URL to the site.
Download - Industrial-Craft-Wiki
I also found two more mods that whilst they aren't on curseforge. I did some research into the main website itself and I noticed that a lot of YouTubers have downloaded the mods from this site as well in the past. These mods would be the Gulliver the Resizing Mod and the Little Blocks Mod.
[MC/Forge][1.6.4] Gulliver the Resizing Mod (v0.14.3 *Oct 21*): changing your perspective of Minecraft [OVER 900,000 downloads] - Minecraft Mods - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
Little Blocks Mod [184.108.40.206] Creation contest! [770KDLs] - Minecraft Mods - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum