News At Seven-Thirty highlights: MTR TKO line services disrupted; Beauty chain closed down; Hu Jintao met Lien Chan in Peru; Obama nominated next Treasury Secretary; Eggs supply return to normal after melamine scare; Welfare payment applications expected to rise; Liberal Party urged on cash coupons; Tibetan exile leaders backed autonomy negotiations; Help on malnourished Haiti children called for; Babies in forward-facing buggies stressful.