Not sure but isn't SlimNAS for FreeNAS 0.7?
Regardless, please let us know what are you trying to achieve. From my understanding Logitech Media Server will serve media files to any compatible device. That is what minidlna does in FreeNAS Multimedia version (default in 8.2). If that is what you need, please search the forums for "minidlna" you will get instructions how to easily setup FreeNAS as multimedia. Personally, I will wait for 8.2 and install the plugins, just to avoid any surprises.
Any reason why you use a 32bits OS, instead of 64bits? Your hardware is not compatible?