i have quiet alot of errors on my site but thay are all the same when i run
http://validator.w3.org the only 2 thing it says is

required attribute "ALT" not specified (on every image )
there is no attribute "LEFTMARGIN".( in this line <body leftmargin="0" )

iv tryed to use html kit to clean up the code but every time i do
when i try to use http://validator.w3.org it says

Result: Failed validation,
Encoding: us-ascii

Sorry, I am unable to validate this document because on line 125, 144, 185, 260, 270 it contained one or more bytes that I cannot interpret as us-ascii (in other words, the bytes found are not valid values in the specified Character Encoding). Please check both the content of the file and the character encoding indication.

iv not got a clue what this means
can someone help please
thank you for your time