HOUSTON (AP) – Carlos Pena hit a three-run homer in the 10th inning, giving the Houston Astros a 7-4 win over the Milwaukee Brewers on Thursday.  Carlos Corporan struck out but reached on a wild pitch with one out in the 10th and J.D. Martinez followed with a double. Pena then launched the first-pitch homer off Michael Gonzalez (0-3) to the second deck in right field.  It was a sloppy game that featured six unearned runs and four errors.  Hector Ambriz (2-4) pitched a scoreless 10th to help Houston take two of three in the series.        Corporan tied it with a solo home run in the eighth.