Unfortunately, Secure Assets Exchange will not survive 1.7 hardfork.
We(I and Sergey, then also Wesley and Steve Ellis) are started project in May, 2014 just few days after Nxt Assets Exchange release. Unfortunately, due to regulations issues (those 3-letters US agencies I dunno much about) new features were not developed since September, 2014. The team switched to SmartContract.com(also Nxt-based).
Since Nov, 2015 I'm not working with Steve&Sergey for many reasons(Wesley left us around Jan, 2015). Initially we came to agreement to continue maintenance of SAE, but later disagree on conditions.
Well, the best I can do here is to open-source SAE backend(as I'm author of it). I'm not sure the guys will do the same.
Farewell letter on the website:
Due to recent increases in maintenance costs and the limited resources/time of any startup that needs to prioritize its initiatives, Secure Asset Exchange will no longer be available as of January 21st, 2016 (NXT block 621,000); please plan accordingly.
We are deeply grateful to all of our users and supporters up to this point and look forward to focusing our energy on making the next generation of great blockchain-based applications, which our now global society can truly benefit from.
Your ability to use your NXT or any of your assets will not be affected by our availability because your account and all of its assets can be accessed through the official NXT client.
To access your account using the password created on trade.secureae.com, simply combine your username with your secret phrase, with no spaces between the two; this will create the password to your NXT account for the official client. For example, if your username is “joe” and your secret phrase is “joe likes coffee” then your account’s password for the official NXT client will be “joejoe likes coffee”. Please make sure to take capitalization and spacing into account, they do matter.
If you have any questions, please feel free to contact us at email@example.com.