Glad that was it! For remote access there is no formal guide (yet). This is partially because I am working on a better solution than simply port forwarding however right now that is the only real option. Simply opening port 80 for your OpenSprinkler on your router will do the trick. If you need help port forwarding let me know.
If you are security conscious I suggest you take a look at @nayr’s post. This is the same method I use personally (but with 2 factor authentication as well). This method just gained support by the mobile application (iOS version still pending). For the SSL/proxy guide, it can vary in difficulty and does require some knowledge going in and most importantly requires another computer on your network.
Those are two main options right now.