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It sounds like the 'cross-hairs' your seeing maybe the spider vanes that hold the secondary mirror in place. Normally you should not really see them other than their diffraction spikes (sorry for the technical term). It does sound like your out of focus, and assuming the scope is properly assembled it should be able to reach focus. As suggested try a wide field of view eyepiece and don't use any extension tubes, and report back. Allan_l is a good teacher on those scopes, I'd follow his advice too.
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