It's true! They're in subversion now in the byakugan/bin/Win7 directory - detours and all. If you're interested in building your own on windows 7, you'll just need to nab the WDK and SDK, then remove the TARGETPATH from the sources files in both the base dir and the injectsu dir. Simply build as usual, running setup.bat from a free build WDK window. Your newly built bins will end up in objfre_win7_x86/i386.
To build detours, go to the detours directory with an SDK build cmd prompt and just do an nmake -f Makefile. It'll place the new detoured.dll in byakugan/bin.
If you use this, let me know how it goes - I haven't put it through any kind of testing, just built, made sure some basic things worked, and commited.
Oh! And if you DO decide to build it on your own, how cool is it that the WDK auto-runs prefast over you code and shows you my use of strncpy?? Effin' sweet. All built into the task bar an' shit. Nice gui too!