What I want to do is, on my homepage have a text field where users can enter a code. This code will correlate to a posts slug, e.g. 001
When the user presses a button next to the text field, it might say 'Go', the correct page loads, and if not found then report it as such.
I have enough experience to customise templates, but not coding. Is this a simple enough task to do through the templates or existing plugins, or am I looking at something a bit more involved?
Some pointers in the right direction or ideas would be handy to get me going. Maybe the answer is simple and I'm just not thinking laterally enough.