Well, here's the first question (didn't take long did it?). Since compiling, some of my files and folders that TortoiseSVN put nice comforting green ticks on are now marked with alarming red exclamation marks. So, um, what does that mean?
Relax, the red exclamation marks mean that the file or folder is different to that of the repository. It basically occurs when you modify the file. I know for a fact the the 'updaterevision' folder within the 'tools' folder always seems to do that. If you want to restore the files to that of the repository, delete the files with red exclamation marks on them and use 'SVN Update'.