Help! Plugin / Database / Template coordination - How Do I?

[carcomp]

I could not think of a single good thread title. Heres what I'm up to.

I want to do the following....

User goes to myforum/somephpfile.php?do=editmystuff&userid=vbulletinuse rid

This php file would just show a textbox with a submit button. Thats all for now. The user could type whatever they wanted, as well as bbcode (it would act like the vbulletin post editor). They could submit that data.

Next, that data would write to the mysql database. It would be stored so that the userid is the "key" and the text would be the "data".

Next, I want a plugin to 'eval' a string placed in MEMBERINFO template. Something like $showmystuff, so that it would pull that data back from the database and assign it to the 'eval'.

I want to be able to dump the 'stuff' that the user posted to the php file in the memberinfo page.

I'm sorry if I am not making good sense. I'm a vb programmer and i'm used to being able to edit code as it runs

Thanks all.