I don't plant my squash out until June, but your compost heap sounds fine!
I grow mine upwards and use a polytunnel frame to drape them over. Just protect the stem at all costs, try a cut down milk carton or water bottle if you can get one, something wide enough it can stay on the whole season and a physical barrier to slugs and to protect from wind rock as already suggested, I usually mark it with a cane so you know where the plant is for watering and feeding reasons as once they get going you wont be able to tell where it was planted!