Hi guys. It's first time to use reddit. Sorry for my broken english.
As I mentioned on title, I've found how to use old save data for new game version. I've read so much comment for losing game progress. So here is solution: First, find your old save data on windows. ''Write Searching box, Herosim''(you must search this word on harddisk which installed windows or internet browser. You get it what i mean. After this step you will see those files.
http://i.hizliresim.com/lv8jAQ.png
Those named ''HeroSimulator1.0.0.sol'' files are our save datas.
We have two important thing here. Red number 1=Name Red Number 2=The last time we have saved game. This is most important part because you can find your old save with this time. Also, here as you see, the internet browser stock the save file in itself's folder.
Second step, Copy and paste. Before Copy and paste, you have one additional step. Open the game on any internet browser, enter the game and save the game. Now, the save data have been sent to same area. We are doing this step because we will change save datas. After this step, Search again ''Herosim'' word and you will see new save data. Look save time on Red number 2, you can see its new. Now, i will show the steps with picture.
http://i.hizliresim.com/vnl4WR.jpg
http://i.hizliresim.com/bJab7d.jpg
You can ask the question if you dont understand.
Note: I was write this method 2h or 3h ago in reddit. Now im sharing here because i want to help everyone. I hope it will help you to fix your ''Losing progress'' problem.