Ok, by deleting the index.html file I has (the site under construction page) that solved the issue with logging into the front end.

But the backend will NOT accept my admin username and password at all.

Still hoping for some help....

Hello,

I just installed JoomSEF in my 1.5 site. Everything seems to be working fine, my URL's changed to SEF and everything, but now I cannot login to the front end or backend of my site, at all. When I try to login to administrator it says username and password incorrect. When I try to login on the front end, it says "Method Not Allowed"

Any ideas on how to fix this?