I'm hoping this is stupidly simple for someone else.
Cause it's giving me a headache.

I redesigned one of my sites. I've got a good start with organic search. The old files were .htm. But the new files are .php. (Discovered the wonderful world of php includes, so that's why the change.)

What I want to do is have my hosting server redirect the old .htm pages to the new .php pages. I want this done without alarming the Searchbots and getting sandboxed. My server company sent me to Mod_Rewrite Forums :: Index, but it's still all greek to me, and I'm hoping someone can help me with a model script to drop into my .htaccess file.