Hi, for more information on the BLOB table type, see http://www.mysql.com/doc/en/BLOB.html
To store uploaded files, create a form similar to:
<form enctype="multipart/form-data" action="URL" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="30000" />
Send this file: <input name="userfile" type="file" />
<input type="submit" value="Send File" />
</form>
on the receiving side, you can do this:
$fileData = file_get_contents($_FILES['userfile']['tmp_name']);
$query = "INSERT INTO table VALUES('$fileData')";
...
...
see http://php.net/manual/en/features.file-upload.php for more info on handling files.
if you want you can look on my profile and contact me on aim or icq if you have trouble.