how do tu find your friends on this? because i can't find one of my friend on this and i looked all over! please help me!!!

What do tu mean? Like buscar her first and last name to find her, as is customary on facebook? If so, that can't be done.
However, if tu know her username, www.fanpop.com/fans/______.

2 ways

link here)

OR

buscar bar(type name)-advanced search-fans-search-you find friend