form submission help

[VodkaFish]

I've got a page outside of vb that works with some of the vb elements (mainly, it's a members-only page).

I've got a lot of it working; the login, the correct info displayed, and correct form stuff setup.

I've got the submit that I want to do with the form, but I'm not sure how to go about it. Here's what I mean: I've got the insert statement I want, and an if/else statement for a couple of the fields of the form - but I'm not quite sure how to do it within the same page and the display a simple "thank you" (like after submitting a post) and then kick you back out to the page that originally led you to the form in the first place.

Does that make sense? Hope so Let me know if I can clear anything up, and I hope someone can point me in the right direction. My php is iffy, but I'm getting by so far.