Blog Help ? ? ?

Still new and a bit clueless in the design side of this blogging world!! 

How do I put all of my favourite blog "buttons" on the side of my blog??? 
I looked under 'gadgets' but couldn't see anywhere!

Also how do I put 'tabs' on the top of my page for example an 'about me' page and 'my family' and 'our wedding day' etc so when people click on the it takes them to a page with all of that specific information and photos??

HHEEELLLLPPPP PLEASE

Thank you x