JEE Main Paper 2 Score is not shown online. For B.Arch Paper final result will be announced along with the Merit List on 05 July 2015
For 1. date given above.
For 2, 3, 4. Please refer my response at JEE Main Paper 2 Result 2015
@shans_a @Shivam_Tripathi date given above in this comment. For JEE Main counselling admission is done on the basis of merit. You can check Opening and Closing ranks of colleges in which you want to take admission at http://admission.aglasem.com/jee-main-cut-offs-college-wise/
@rinky_heerekar chances of getting admission can only be predicted after knowing your rank (on delaration of result)