If I fill out a 1065 form, do I still file taxes?

Yes.  If you fill out a 1065, it should generate a K-1.  You will enter the K-1 on your personal return to report the income.  You do not pay taxes when you file the form 1065 as it is a flow through entity.  So the taxes are paid when you enter the K-1 on your personal return. 

the 1065 is only to report the business income/loss that must be reported on your personal 1040s. this is done by each of you preparing your own 1040 including the k-1 that the partnership issued (or should have issued) and other taxable income and deductions. It is with the 1040 that you pay any income taxes owed.