No offense, but I think the other one is way better. The fonts, the search bar, and the spacing of everything is much more well thought out. I think the "stolen" one is actually more clean and less busy than yours.
There are similarities, but I don't think he/she stole your design.
For example, look at the login screen:
OP's (PhilipDaineko): http://demo.okendoken.com/login.html
Other person's: http://www.sean-theme.com/admetro/login.html