Can't Login to new install, even with email's details.

Hi,

I installed WordPress using Fantastico.

I gave my email address to send the installation details to.

I GOT the email with the details of my installation!

But the login won’t let me in, so I input my username into the “lost password” box, and wait for the email. But it never comes.

When I put in my email address in the Lost Password box, I am told no such email exists on this domain! (But I got SENT an email with my installation details!)

I double checked and I definitely did put in the right email address. I also put every combination of upper and lower case, to no avail.

I need to access the dashboard urgently.

What should I do please?