Tax liens in Chapter 7 - ugh! Not something that usually has a pretty ending. Why are you continuing to over withhold when your refunds are being seized each year. You ought to sit down with a tax adviser so you understand how to withhold correctly. Hope this perspective helps!
Your liens should be gone by now, unless the state renewed them.
Also, if your husband was the "responsible party" that didn't pay when he should have, it is possible that they would be dischargeable in your own bankruptcy--you should contact an attorney in your state that regularly handles tax cases.
If it can be discharged, it only survives to the amount of property to which it currently attaches--for example, if you have $5,000 in home equity, that $5,000 would stay attached, and the rest could be removed.
Realize that you're not looking at a simple bankrtuptcy case; you need not just experienced bankruptcy counsel, but someone that can handle the tax aspects.