I wrote a step by step tutorial which works very fine for all my friends: Tutorial for Seafile CE + Nginx + dynamic DNS (on ARM / Cubietruck / RaspberryPi)
This is for GNU/Linux but I installed Seafile server on Windows as well later so maybe it is not a bad idea to take a RPi or a VM with Debian and test everything step by step (snapshots ftw) which would provide you detailed knowledge for later setups.
Seafile server setup is not easy but worth to take the challenge. 