Well, I have no experience with that chip or ever heard of that company. So I got curious and wanted to help out.
After about an hour of searching, I finally found their website, http://www.aplusinc.com.tw/
I was getting the impression that they didn't even have a website. I would imagine that they are not very popular and don't get site hits..
But anyway, here is their software page, http://www.aplusinc.com.tw/exec/msg.php?mid=13&cid=3&pid=13&lg=E
. This is the only page where I found any software, but it's listed as "Update."
Let me know if this is what you were after.