Windstar Security

I lost my 99 keys for my windstar, been missing for 8+months and in that time the battery DIED.... anyhow yipee I found the keys, and when I try and start the car, the dash lights up, when I turn the key into
the start position, I can hear a clicking noise (repeating) and the dials light up then the THEFT thing lights up and theres a lot of beeping going on.
Is there a chance that the car forgot the key code, or the key lost the code? Does anyone else have any ideas?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.