Users able to see there own photo after login

[bagfull]

Hi,
i m working on asp.net with c#.

i have 4 users .
1. Admin
2. Employee
3. Student
4. Guest User

1,2,3 can login into my site. whenever particular admin or employee or student logins of any then it shld show there photo in there profile...

so after login session.. i want show there own photo.. and registration are done by admin so at at that time student and employee photos are uploaded.

so plz tell me what to do ? i have no idea abt it... if possilbe give me some code.

thanks