Hi FaMoonLau! Thanks for the details about XXJ. It sounds like 90% talk and 10% action. The passing of the royal exam is a lot like what Cai Chen's mom required him to do before she would allow his marriage to Xiao Qian. Typical scholar stuff, I guess. Anyway, it's nice to know that Xiao Hai at least made the best of a dull storyline.
More details regarding Xiao Hai's current whereabouts: He is in Zhe Jiang Heng Dian ( 浙江横店 ) filming "Shang Dao". Tammy Chen will be in this production too. I wonder if she will be matched up with Xiao Hai? In any case, I just get the feeling that he will once again be jipped in the beautiful girl department.
If you want to leave Xiao Hai a message at his current locale, you can do so here. Make sure the message is in Chinese though, since I don't think he knows much English.
For anyone who is interested, here is the "Hua Gu Zi" ending theme song MV: Xiang Si Lei.
The images are kind of fuzzy, but it's very complete (unlike what's shown at the end of the actual show) and seeing Xiao Hai looking so cool makes me want to rewatch certain parts again.