More or less like this:

diff --git a/include/ListView/ListViewController.php b/include/ListView/ListViewController.php
index 5b84166..b65c0d4 100644
--- a/include/ListView/ListViewController.php
+++ b/include/ListView/ListViewController.php
@@ -339,6 +339,7 @@ class ListViewController {
 								$value = CurrencyField::convertToUserFormat($value);
 							}
 						}
+						if ($value==0) $value='';
 					}
 				} elseif($field->getFieldDataType() == 'url') {
                     $matchPattern = "^[\w]+:\/\/^";
diff --git a/Smarty/templates/DetailViewUI.tpl b/Smarty/templates/DetailViewUI.tpl
index ceb7bb8..6ccb30a 100644
--- a/Smarty/templates/DetailViewUI.tpl
+++ b/Smarty/templates/DetailViewUI.tpl
@@ -25,11 +25,13 @@
 
 				{if $keyid eq 11 && $USE_ASTERISK eq 'true'}
                     &nbsp;&nbsp;<span id="dtlview_{$label}"><a href='javascript:;' onclick='startCall("{$keyval}", "{$ID}")'>{$keyval}</a></span>
+				{elseif ($keyid eq '71' || $keyid eq '72') && $keyval eq "0"}
+					&nbsp;&nbsp;<span id="dtlview_{$label}"></span>
 				{else}
 					&nbsp;&nbsp;<span id="dtlview_{$label}">{$keyval}</span>
 				{/if}
                 <div id="editarea_{$label}" style="display:none;">
-                	<input class="detailedViewTextBox" onfocus="this.className='detailedViewTextBoxOn'" onblur="this.className='detailedViewTextBox'" type="text" id="txtbox_{$label}" name="{$keyfldname}" maxlength='100' value="{$keyval}"></input>
+                	<input class="detailedViewTextBox" onfocus="this.className='detailedViewTextBoxOn'" onblur="this.className='detailedViewTextBox'" type="text" id="txtbox_{$label}" name="{$keyfldname}" maxlength='100' value="{if !(($keyid eq '71' || $keyid eq '72') && $keyval eq "0")}{$keyval}{/if}"></input>
                     <br><input name="button_{$label}" type="button" class="crmbutton small save" value="{$APP.LBL_SAVE_LABEL}" onclick="dtlViewAjaxSave('{$label}','{$MODULE}',{$keyid},'{$keytblname}','{$keyfldname}','{$ID}');fnhide('crmspanid');"/> {$APP.LBL_OR}
                     <a href="javascript:;" onclick="hndCancel('dtlview_{$label}','editarea_{$label}','{$label}')" class="link">{$APP.LBL_CANCEL_BUTTON_LABEL}</a>
                 </div>
diff --git a/Smarty/templates/EditViewUI.tpl b/Smarty/templates/EditViewUI.tpl
index 57e1348..2675f4d 100644
--- a/Smarty/templates/EditViewUI.tpl
+++ b/Smarty/templates/EditViewUI.tpl
@@ -420,7 +420,7 @@ alt="Clear" title="Clear" LANGUAGE=javascript	onclick="this.form.{$fldname}.valu
 					</div>
 					{/if}
 				{else}
-					<input name="{$fldname}" tabindex="{$vt_tab}" type="text" class=detailedViewTextBox onfocus="this.className='detailedViewTextBoxOn'" onblur="this.className='detailedViewTextBox'"  value="{$fldvalue}">
+					<input name="{$fldname}" tabindex="{$vt_tab}" type="text" class=detailedViewTextBox onfocus="this.className='detailedViewTextBoxOn'" onblur="this.className='detailedViewTextBox'"  value="{if ($fldvalue neq "0")}{$fldvalue}{/if}">
 				{/if}
 			</td>