Writing and saving HTML on Vista

I just started teaching myself how to really delve into writing HTML for website formatting. Problem is, I try saving the script to notepad on my Vista and it doesn't have the Save As htm, html option. So I save it in MS Works, not Word, but once I click to save it says that works will not maintain the format that the script is written in.
When I go to open the file with Firefox, it just comes up as the straight script and not the commands I entered.
Its still in its baby steps with only text and Im sure I wrote the script right, making sure I closed all tags and didn't overlap anything, so any reason why its not working?
I tried refreshing the page, saving the doc in other names and nothings working.
When I go to open the file with Firefox, it just comes up as the straight script and not the commands I entered.
Its still in its baby steps with only text and Im sure I wrote the script right, making sure I closed all tags and didn't overlap anything, so any reason why its not working?
I tried refreshing the page, saving the doc in other names and nothings working.