LEAD: U.S. envoy to Japan says Toyota recall does not harm Japan-U.S. ties+   Avalanches kill at least 157 in N. Afghanistan+   U.S. envoy to Japan says Toyota recall does not harm Japan-U.S. ties+   AP NewsAlert   Peugeot Citroen narrows losses   Horse racing: 10-time G1 race winning jockey Tsunoda to retire+   Pakistan says has "credible information" Mehsud dead   Militants go on trial over 2009 Jakarta hotel bombings+   Court rules British government must reveal secret documents on Guantanamo detainee's treatment.   Preliminary vote results show Yanukovych narrowly wins Ukraine presidential race.   Facing rampant inflation, Myanmar turns to bartering   Greek unions launch 1st assault on austerity plan   Kenya rounds up prey for starving lions   18 points in western Japan enjoy record temperatures for February+   Fujitsu Awards ITC Global Security a Multi Million Pound Contract   Greek strike tests government's austerity mettle   3RD LD: Man held after fatally stabbing 2 women, abducting ex-girlfriend+   Toyota chief to visit U.S. as early as next week over recall problems+   Toyota starts fixing Priuses recalled in Japan   Japan gov't debt reaches 871 trillion yen at end of 2009+