Can't use codeigniter from lampp

i met similar problem when i try using codeigniter lastweek for the first time,
in my case it is error403, and i stuck at that for a whole week, i just meet with welcome page in codeigniter today.
i manage to solve it with changing every folder and file owner with root, and make sure every file and folder have permission for others to read.
i hope this can help...

Just a newbie in programming field and english who don't understand complicated stuff.