i uploaded pictures and some of them are sideways and can not rotate the ones that need to be rotated. can someone please help

Where at?? In the classifieds?? Can you post a link to the thread or ad??
There is a glitch in the system that happens sometimes when loading iphone pics.

Here is an old thread with info. images rotated
You will probably have to delete the pics that are rotated and then reload them.

It's because of the metadata. You'll need to rotate them in an editing program before posting them. Removing metadata is also helpful.