powweb installling

my hosting provider, powweb, installed wordpress for me. I asked them to keep my current website up while I work on wordpress.

After that, I logged onto /wp-admin, created some great pages, and now want to switch my website to the wordpress one.

I contacted powweb for their assistance and they asked where my wordpress files are located. since they set it up- I had no idea. And since they don’t know- how can I find them?

And once I do- how to I switch my website so that wordpress will show rather than my old website?