Problem with checkout

[dark_ata]

hello

i "install" zencart 1.3.0.2 full and have probelm with checkout. in step 1 of 3 i choose any shipping, for example Store Pickup, and click in continue checkout and return to index, and i can´t continue if i write main_page=checkout_payment i can finish. the product have all 10 weight. if any can helpme can try http://www.elgusanoalegre.com user demo @ elgusanoalegre.com pass:zencart login is "ingresar"

another question, in the guest cart when click in "pagar" pay also return to index and not to signin, how change this?.

sorry the store is in spanish but the button are in english, and sorry for my bad english. thanks

español
he "instalado zencart 1.3.0.2 full y tengo problemas con el checkuot, en el paso 1 de 3 selecciono un metodo de envio, recoger en tienda por ejemplo, y le doy a continuar y me devuelve al index y no a checkout_payment , si lo escribo yo si puedo terminar sino no. los productos tienen peso generico de 10kg. si alguien me puede ayudar
http://www.elgusanoalegre.com user demo @ elgusanoalegre.com pass:zencart

otra pregunta, xq cuando entro como invitado y añado al carrito y le doy a pagar no me manda a registrarme o login sino al index ?.

muchas gracias a todos

[DrByte]

When you installed Zen Cart, did you see any red or orange warning messages? Did you fix them, or ignore them?

What contributions/addons have you installed, if any?

[dark_ata]

thanks
i finally find the problem. i not read and put in all directory 666 not 777. thanks for all people.