Ok, as I now will upload them, let's say I did it now.
One important thing though: The two games are actually connected to their addons and are one game, to make it more understandable, here is like the games exist on my CD:
1. Ultima VII - The Black Gate and Forge of Virtue - ONE game (not the game and separated addon, no way to install just Black Gate without addon).
2. Ultima VII - Serpent Isle and The Silver Seed - ONE game too (same here).
So like you see that means that the already existing game on this site have to be replaced with my version that is connected together with the addon and is actually one game in order to play with addon (sorry to negate you good work, Mika...
)
But the good news for that are that you just need to download two games instead of four to play the two series together with the addons.