I have never, ever ever, been able to open my screenshots, or find where they go, or look at them ever at any point. It says they save to disk but I cannot find how to re-access hthem again, and therefore cannot post any items on this site. Help on how to get this to work would be much appreciated, thank you!

You can find all the in-game screenshot in your C:/Images/RollerCoaster Tycoon 3 Platinum folder. You have to replace the "C" with the letter of your main hard drive.

The shots are in .bmp format, remember to convert it in JPEG with Paint or any other programs, since RCTgo only accepts JPEG images.

It can also be useful to know that renaming a peep "David Walsh" and than pressing CTR + U you can remove the user interface so as to take better screenshots. By pressing CTR + U again the interface will reappear.

For RCT1 the screenshots are in *.pcx format and saved in the "D:/GOG Games/RollerCoaster Tycoon Deluxe" folder for me. Replace the "D" with the letter of your hard drive where you installed the game.  I use the "Easy2Convert PCX to JPG" freeware program to convert the RCT1 screenshots.

For RCT2 the screenshots are in *.bmp format and saved in the "D:/GOG Games/RollerCoaster Tycoon 2 Triple Thrill Pack" folder for me. Remember you will have to re-save your screenshots with Paint or any other program as a JPG, GIF, or PNG. Saving screenshots as JPG  is your best bet as far as keeping quality high and file size down.