Well, I guess you can tell from the HUGE response that it's a little bit difficult to make heads or tails of your description. It's difficult to describe insects when you don't know a whole lot about them. I thought I'd send an image of one of the insects that are in the same group of critters that you mention (bedbug), and are often found in large numbers in the garden. At least we can eliminate some things for you.

Here is a link that might be useful: {{gwi:1002855}}

Thats the one!!!! Thank you!!!
A friend told me it was a common milkweed bug.
Is that true?
What can i do to get rid of them?
I have hundreds all over the place.
Help!

Boxelder bugs are similar to (and related to) milkweed bugs, but they're not the same species.

Boxelder bugs are usually found in large numbers near female boxelder trees (Acer negundo). Some people will cut down any female (seed-bearing) boxelders on their property to reduce the population of this bug.

Give your location, I would suggest that another strongpossibility is the goldenrain tree bug, Jadera haematoloma. This similar bug can be a problem if you've got goldenrain tree or goldenflame tree (Koelreuteria sp.).

Here's a link to compare them and get info: Boxelder and goldenrain tree bugs (.pdf)