diff --git a/CTFd/__init__.py b/CTFd/__init__.py
index c925e83f..ceee401d 100644
--- a/CTFd/__init__.py
+++ b/CTFd/__init__.py
@@ -1,7 +1,7 @@
 from flask import Flask, render_template, request, redirect, abort, session, jsonify, json as json_mod, url_for
-from flask.ext.sqlalchemy import SQLAlchemy
+from flask_sqlalchemy import SQLAlchemy
 from logging.handlers import RotatingFileHandler
-from flask.ext.session import Session
+from flask_session import Session
 from sqlalchemy_utils import database_exists, create_database
 import os
 import sqlalchemy
diff --git a/CTFd/admin.py b/CTFd/admin.py
index 2725e1c7..091ddf00 100644
--- a/CTFd/admin.py
+++ b/CTFd/admin.py
@@ -1,6 +1,7 @@
 from flask import render_template, request, redirect, abort, jsonify, url_for, session, Blueprint
 from CTFd.utils import sha512, is_safe_url, authed, admins_only, is_admin, unix_time, unix_time_millis, get_config, set_config, sendmail, rmdir, create_image, delete_image, run_image, container_status, container_ports, container_stop, container_start
 from CTFd.models import db, Teams, Solves, Awards, Containers, Challenges, WrongKeys, Keys, Tags, Files, Tracking, Pages, Config, DatabaseError
+from CTFd.scoreboard import get_standings
 from itsdangerous import TimedSerializer, BadTimeSignature
 from sqlalchemy.sql import and_, or_, not_
 from sqlalchemy.sql.expression import union_all
@@ -19,8 +20,6 @@ import json
 import datetime
 import calendar
 
-from scoreboard import get_standings
-
 admin = Blueprint('admin', __name__)
 
 
@@ -445,9 +444,11 @@ def admin_team(teamid):
         solves = Solves.query.filter_by(teamid=teamid).all()
         solve_ids = [s.chalid for s in solves]
         missing = Challenges.query.filter( not_(Challenges.id.in_(solve_ids) ) ).all()
-        addrs = db.session.query(Tracking.ip, db.func.max(Tracking.date)) \
+        last_seen = db.func.max(Tracking.date).label('last_seen')
+        addrs = db.session.query(Tracking.ip, last_seen) \
                 .filter_by(team=teamid) \
-                .group_by(Tracking.ip).all()
+                .group_by(Tracking.ip) \
+                .order_by(last_seen.desc()).all()
         wrong_keys = WrongKeys.query.filter_by(teamid=teamid).order_by(WrongKeys.date.asc()).all()
         awards = Awards.query.filter_by(teamid=teamid).order_by(Awards.date.asc()).all()
         score = user.score()
diff --git a/CTFd/models.py b/CTFd/models.py
index b95266f3..1b15e309 100644
--- a/CTFd/models.py
+++ b/CTFd/models.py
@@ -1,9 +1,9 @@
-from flask.ext.sqlalchemy import SQLAlchemy
+from flask_sqlalchemy import SQLAlchemy
 from sqlalchemy.exc import DatabaseError
 from sqlalchemy.sql import func
 
 from socket import inet_aton, inet_ntoa
-from struct import unpack, pack
+from struct import unpack, pack, error as struct_error
 from passlib.hash import bcrypt_sha256
 
 import datetime
@@ -16,11 +16,15 @@ def sha512(string):
 
 
 def ip2long(ip):
-    return unpack('!I', inet_aton(ip))[0]
+    return unpack('!i', inet_aton(ip))[0]
 
 
 def long2ip(ip_int):
-    return inet_ntoa(pack('!I', ip_int))
+    try:
+        return inet_ntoa(pack('!i', ip_int))
+    except struct_error:
+        # Backwards compatibility with old CTFd databases
+        return inet_ntoa(pack('!I', ip_int))
 
 db = SQLAlchemy()
 
@@ -180,7 +184,7 @@ class Solves(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     chalid = db.Column(db.Integer, db.ForeignKey('challenges.id'))
     teamid = db.Column(db.Integer, db.ForeignKey('teams.id'))
-    ip = db.Column(db.BigInteger)
+    ip = db.Column(db.Integer)
     flag = db.Column(db.Text)
     date = db.Column(db.DateTime, default=datetime.datetime.utcnow)
     team = db.relationship('Teams', foreign_keys="Solves.teamid", lazy='joined')
diff --git a/CTFd/templates/admin/pages.html b/CTFd/templates/admin/pages.html
index a2843615..b481f768 100644
--- a/CTFd/templates/admin/pages.html
+++ b/CTFd/templates/admin/pages.html
@@ -92,7 +92,7 @@ function load_confirm_modal(route){
 function save_css(){
     var css = editor.getValue();
     var nonce = $('#nonce').val();
-    $.post('/admin/css', {'css':css, 'nonce':nonce}, function(){
+    $.post(script_root + '/admin/css', {'css':css, 'nonce':nonce}, function(){
         console.log('saved');
     });
 }