Suggestions for a post-to-host type of hack

[harmor19]

What else would you like to see in this hack?
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If the user does not have enough post he or she cannot request hosting
The screenshot below represents a newly registered user with zero posts.

If the user does have enough posts a link will be presented to them under the appropriate plan
The screenshot below represents an user who has enough posts for the "Basic" plan.

The screenshot below represents a user who has enough posts for the "Expanded" plan.

If the user clicks the link "Request This Plan" he or she will be directed to a form

If the form is left blank they'll get a message telling them to fill in all fields
If the user enters anything other than letters or numbers then a message will tell them that they can only use letters or numbers.
If the username is longer than 8 characters it'll show the user that the username cannot be longer than 8 characters.

After the user has successfully submitted the form they'll see this on the overview

In a private forum a new thread is created in a forum you specified through the ACP.

Within said thread is the screenshot of the post below.
The password is randomly generated and inserted into a field in the user's database. If user forgets their password you can reset their password very easily.

If accepted the title of the thread will change aswell

A private message will be sent to the user who requested the hosting

When the user goes back to the overview page they can change hosting details, such as their username or subdomain.

When they click "Change account details" they'll be sent to a form

I have changed my subdomain to "harmor.xenweb.net" to andrewharmor.xenweb.net but I left my username the same.

If the user accumulates enough posts to match the next plan up they can upgrade to that plan

When they click the "Upgrade to this plan" a new thread will be created automatically.

Here's the coding
http://vbtest.iconrate.net/host.phps