ideas on how i can do a site like this(with php,mysql)

i want to make a site where i ( the admin) can login upload a picture or something tag it for a client
then i have a client login
it then brings up a auto generated table listing all the projects they are involved with
when they click on link in the table it will open a auto generated page where they can download the proof file i attach and this page will also have a comment box where they can comment on it and a approve or disprove button
also i want the comments and apovel info auto emailed to me

would this be a doable project? easy?
im still learning php and mysql

any help tutorials to point me in the right direction at appreciated

 

ok so far tonight ive got a login page that works
on the success page i want it to display parts of a table where the username that was used to login is in the username column
everything ive tried hasnt worked so far the code im working with outputs this
"Login Successful
Welome, Wally.
Query to show fields from table failed"

without the where clause it prints the whole table but to me it looks like that where should work
can anyone help?

EDIT FIXED ISSUE

 

i figure i wont learn if i use a CMS or atleast il learn more if i do it from scratch
for complex things in the future i wont hesitate to do it the easier way
that being said what is a PHP framework like CodeIgniter? what are the benifits? i might you it

thanks