How can I get a copy of my w2 forms form 2007?

You can request one from the company or person that issued them in the first place.

If you used a tax professional, they have one on file.

You can also get a tax transcript from the IRS which will have the W-2 information on it.

The place that you worked has to provide them ( or a summary)

And your previous tax preparer should have a copy