There is a new event in the Quest Guild Lounge with Rexardo the T-Rex, after you finish all the board quests in Paradino!

I think they're in the office room , if you just head left, go up the stairs and go inside.

You need to use some kind of pc simulator, I was asked if i could add the files for that reason.

Are you talking about the speedo in the chest right at the beginning of the Western Island beach? The one you need to equip in order to dive underwater?

Did you already do the previous steps? Aka handed him the guestbook in Safen, then called him gay at Bangers in Gloomy Forest and at the beach? If so, you just have to enter and re-enter the restrooms until there's a pink "4" over the stall door, so you know he's in there. It might take a few attempts, depending on your luck.

Upstairs of Cal's Cafe 

In the top right corner of the map

Fire Dungeon, second floor. In the room with the last fire guard before you reach Duiro, head left and follow the hallway to the jail cell with Wizzy in it. For more questions like this, check the walkthrough.

Yes, all three are on the island. There is a walkthrough, if you wanna know where precisely.

the game has some preset saves, there is a notepad in the file telling what those saves are

If you still got access to your old computer, you can just import the "save"-folder from your game. The path is Small On Top[VERSION]/Small On Top/www/save. You'll need the entire "save"-folder, just put it on a USB stick, and replace the "save"-folder on your new computer with the old one. However, depending on how old your save files are, they may or may not work with the latest version of the game.

In the bar in Shiptown

Did you unzip the game folder before you started the game?