Sikre baggrund og indholdets placering i forskellige opløsninger ??

Jeg har et problem med at det jeg laver ser pænt ud i 800*600 men ligner lo.. i andre opløsninger :(

Min kode er:
<html>
<head>
    <title>Untitled</title>
</head>

<body  background=\"grafik/personel.gif\" bgproperties=\"FIXED\" style=\"background-position: left; background-repeat: no-repeat;\" leftmargin=20% topmargin=120%>

<table border=\"0\" cellspacing=\"20\" cellpadding=\"0\" align=\"left\" >
<tr>
  <td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><th style=\"border:1px solid #dadaff\"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></th></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Fri</th></tr></table></td>
  <td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><th style=\"border:1px solid #dadaff\"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></th></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Aktiv</th></tr></table></td>
  <td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><td style=\"border:1px solid #dadaff\"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></td></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Aktiv</th></tr></table></td>
  <td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><td style=\"border:1px solid #dadaff; \"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></td></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Aktiv</th></tr></table></td>
    <td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><td style=\"border:1px solid #dadaff; \"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></td></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Aktiv</th></tr></table></td>
<td><table border=0 cellspacing=0 style=\"border:1px solid #dadaff\">
      <tr><td style=\"border:1px solid #dadaff; \"><IMG SRC=\"grafik/JD.gif\" BORDER=\"0\" WIDTH=\"95\" HEIGHT=\"95\" ALT=\"\"></td></tr>
      <tr><th height=\"200\" align=\"left\" valign=\"top\" style=\"border:1px solid #dadaff; font-size: xx-small; font-family: Arial;\"><center>John Doe</center><br>Alder: ??<br><br>Speciale:<br>Web udvikling<br>PHP<br>MYsql<br>HTML<br><br><br>Status: Aktiv</th></tr></table></td>

</tr>
</table>

</body>
</html>



Den ses i funktion på www.friserverplads.dk/scopecode under \"personel\"

Hvordan løser jeg det problem ???