Is the problem that the ribbing itself looks inside-out? Knit a few more rounds before freaking out. The just-knit rib will be inside out like that because the bumps come up higher than the Vs; but once it's a few rows off the needle, it'll naturally fall into the normal rib pattern with the Vs in front of the bumps.
(If the problem's that you've started straight knitting -- not ribbing -- and the purl's on the outside when it's supposed to be knit, that's just the work being inside out; you can flip it through to have the purl on the inside. But it's still nothing that you need to stress about, at least yet. )