To answer some questions, If The "Pokémon hentai version" game is working for you; and This game is not working for you. Then you should try to transferring the "game.exe", "game.swf", and the "game.htm" files from the working game to the game that is not working. Both games use the same game engine so if there is a problem loading one game it could be fixed by swapping files around.
To answer the Pokémon Evolution question. No; I plan on adding that to the game in the future, as an out of battle event. But I have not worked on it yet.
The Futa question is something I am not planning to add to the game, even adding males would be a lot more work.
The Level 10 cave question; There once was a bug in the game that created high level Pokémon in caves. That has been fixed. Currently the Highest level Pokémon that can be found in the game are the Pokémon north of the second city, but there fall a level or two short of being level 10.
As for the Swim question, I think that I would have to add that to the game, near the end of the game. I have been working on that ability; in fact it is possible to swim from the first town to the second town on the island. However I do not like games where there are walls in the ocean that prevent the player from swimming anywhere they want. So once the player learns to swim; they can swim, in theory, to any part of the island. So I can not add it to the game too early.
Below is a picture of an uncharted (and unfinished) part of the island, that can currently only be found by swimming there.
Spoiler (click to show/hide):
- Swim.GIF (155.52 KiB) Viewed 2984 times