RewriteEngine On

# Page
RewriteRule ^([a-z\-]+)$ /?page=$1 [QSA,L]

# Wishlist
RewriteRule ^wishlist/([a-z0-9]+) /?wishlist=$1 [QSA,L]

# Wishlists
RewriteRule ^wishlist/(\d+) /?wishlist=$1 [QSA,L]