AVR-Chat

hi ive started learning  AVR couple of days ago.now iam familiar with codevision and proteus and can handle easy projects(very easy).iam working with 'C'
please send me some easy projects(very easy) to practice.
and i dont know any thing about seven segment or .... i can find it in proteus but dont know wats the use of their ports or how i should join their ports ....plz help me.