I have bitcoins to SPEND, I have bitcoins to SAVE, and I have bitcoins for LONG-TERM savings.
I just wanted a way to make them unspendable for a set amount of time.
That they do. You have 44 replies to your question so far (excluding this one). In summary, Aswan and I have posted answers and the remaining 42 second guess you, assume you're an idiot, or are off-topic.
If you want a higher signal-to-noise ratio try reposting in the "Development & Technical Discussion" subforum or, better yet, try searching for older discussions on the same topic (try the search terms: "lock_time" or "nlocktime").
If I have time and you're in no hurry, I'd be interested in helping you through the details (PM me) but you may well find someone more knowledgable and with more time for this, especially if you offer a small bounty.