error 404 -not found

Hey Guys, I have dolphin uploaded to my 1and 1 linux server, eveything looks good when signing on to the site, but some of the links do not work on page and it states error 404-not found when clicking on them, also, when checking members it also states the same thing please help...Im going nutz with this and cant seem to understand what Im doing wrong, I have uploaded the htacess file from dolphin as well  the website is www.realfundate.com

Page Not Found

I have tried this as well, but still no luck, any ideas? Thank you for your response