I'd like to address a problem with slider stadium. Turns out that in SRB2CB if you try to select and access the stage the game crashes automatically. I'm not sure what's the cause but when it's accessed in 2.0.7, the stage is also missing a stage pic.
Might I suggest using a different file sharing site like Mediafire or even the SRB2 Forums itself to distribute the .wad? 4Shared was reliable but now that you have to make an account and log in whenever you want to download a file, it's just inconvenience = for the people who don't have a 4Shared account just to make one in order to download just one file.