Tutorial [Q] cant install custom rom on LAVA Iris 458Q

Hi, My os got crashed when i was trying to install Ifonts apps.Few days back i just rooted my device but i didn't install cwm. now m not able to turn on my phone.i am wanting to install a custom rom(http://forum.xda-developers.com/show....php?t=2633214) from here. But its not detecting my external SD card in recovery mode. please suggest me what to do.