Thanks for your post. Well, it's easy to see why you're confused and upset, so let's chat a bit.
HPV tests that can find HPV directly are increasingly being used along with Paps for women over age 30, so many women find themselves in your situation. These tests are very accurate but not perfect, and in a few cases can render either false negatives or false positives (this only happens with a small percentage of cases, though).
Sometimes HPV is only detected many years after a woman was exposed to the virus - this is certainly not unheard of. Very, very few cases of "high risk" HPV lead to cervical cancer, especially in women who have the virus detected but have normal Paps. The important thing is to go for follow up exams as directed.
The vast majority of women who test positive for HPV on a DNA test will eventually test negative, so ask your provider if repeating the test at some point might be helpful.
Keep in mind that virtually everyone who has ever been sexually active has had HPV at some point, it's just that most of them don't know it (if you had come along a generation earlier, before HPV tests, you'd probably have never known, either!). The virus is seldom dangerous, most often doesn't cause visible symptoms and, as mentioned earlier, is often cleared by the immune system.
Let us know if you have any other questions, and check in anytime.