The Original Mod can you find here: http://www.4homepages.de/forum/index.php?topic=8987.0I Have some Problemes Solved. The Files are Updated and works fine with Captcha and Uploadform.
This is the complete and customized version, with all the solutions and ideas. Can immediately installed and used.
For the others, replace the old files.
The Mod Spellchecker are included: http://www.4homepages.de/forum/index.php?topic=22141.0Mod is tested on 1.7.3, 1.7.4 and 1.7.6
Die Originale Mod kannst du hier finden: http://www.4homepages.de/forum/index.php?topic=8987.0Ich habe einige Probleme behoben. Die Dateien habe ich geupdated und es läuft super mit Captcha und der Uploadform.
Das ist die fertig und angepasste Version, mit allen Lösungsvorschlägen und Ideen. Kann sofort eingebaut und verwendet werden.
Die anderen, die schon die originale Version eingebaut haben, brauchen nur die Dateien zu überschreiben.
Die Mod Spellchecker ist schon mit eingebaut: http://www.4homepages.de/forum/index.php?topic=22141.0Die Mod wurde auf 1.7.3, 1.7.4 und 1.7.6 getestet.
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Danke / Thanks:- by
vividviews for the Ori, Ori, Original Mod / Für ganz Originale Version
- by
Honda2000 and
Vincent For the re-set the Mod / Für das neu einstellen der Mod
- by
Honda200 for the Idea / Für die Idee:
http://www.4homepages.de/forum/index.php?topic=8987.msg113769#msg113769- by
ivan for the Captcha Installation / Für den Captcha- Einbau:
http://www.4homepages.de/forum/index.php?topic=8987.msg80124#msg80124Installation: 
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Uploade die Files / Upload the Files
- root/spellcheck
- root/uploads
- root/lang
- root/includes
- root/contact.php
- root/templates/#your-dein template#/contact.html
- root/templates/#your-dein template#/contact_mailform.html

/

Öffne / Open: templates/->dein/your Template<-/
header.html 
/

Suche / Search:
<link rel="stylesheet" href="{template_url}/style.css" />

/

Füge
darunter das ein / Copy this
below:
<link href="spellcheck/googiespell.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="spellcheck/js/AJS.js"></script>
<script type="text/javascript" src="spellcheck/js/googiespell.js"></script>
<script type="text/javascript" src="spellcheck/js/cookiesupport.js"></script>

/

Upload erwünscht / Desired ?
Öffne / Open:
templates/#your/dein template#/contact_mailform.htmlSearch / Suche:
<!-- <th><div align="left">
<?php
// PHP Code:
// Where the file is going to be placed
$target_path = "uploads/";
/* Add the original filename to our target path.
Result is "uploads/filename.extension" */
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
$_FILES['uploadedfile']['tmp_name'];
$target_path = "uploads/";
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['uploadedfile']['name']).
" has been uploaded";
} else{
echo "";
}
?>
</div></th>
</tr> -->

/

Ersetze mit/ Replace with:
<th><div align="left">
<?php
// PHP Code:
// Where the file is going to be placed
$target_path = "uploads/";
/* Add the original filename to our target path.
Result is "uploads/filename.extension" */
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
$_FILES['uploadedfile']['tmp_name'];
$target_path = "uploads/";
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['uploadedfile']['name']).
" has been uploaded";
} else{
echo "";
}
?>
</div></th>
</tr>

/

Search / Suche:
<!-- <tr>
<td align="right" valign="middle"><b>Upload:</b></td>
<td align="left">
<input type="hidden" name="MAX_FILE_SIZE" value="100000" class="inmput"/>
<input name="uploadedfile" type="file" class="input" size="26"/>
<input type="submit" value="Upload File" class="button"/>
<br />
</td>
</tr> -->

/

Ersetze mit / Replace with:
<tr>
<td align="right" valign="middle"><b>Upload:</b></td>
<td align="left">
<input type="hidden" name="MAX_FILE_SIZE" value="100000" class="inmput"/>
<input name="uploadedfile" type="file" class="input" size="26"/>
<input type="submit" value="Upload File" class="button"/>
<br />
</td>
</tr>