[Help with a simple dynamic table]

I am trying to code the following and keep getting the same error, I am trying to accomplish everything in a single echo statement but I am not sure if that is possible, maybe i just need to use multiple echos.  I don't know but its driving me nuts and i can't figure out what is wrong.  it is probably something simple

Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /home/.latke/diamondice/diamondice.spikapino.com/downloads2.php on line 100

Also another error I have gotten is also

Parse error: syntax error, unexpected T_LNUMBER, expecting ',' or ';' in /home/.latke/diamondice/diamondice.spikapino.com/downloads2.php on line 100

while ( $row = mysql_fetch_array($result) )
{
echo(
"<tr>"
"<td width = '200'>" . $row["sw_name"] . "</td>"  //<----(line100)
"<td width = "150">" . $row["file_size"] . "</td>"
"<td width = "50">" . "<a href=" . $row["url"] . ">download</a>" . "</td>"
"</tr>"
"<tr>"
"<td width = "400" colspan = "3">" . $row["description"] . "</td>"
"</tr>");
}

What do these errors mean... and how can i fix them?  please help