Change the text strings to suit the themes page

Signed-off-by: Suki <suki@missallsunday.com>

Themes/default/Themes.template.php

@@ -64,7 +64,7 @@ function template_main()
 				</h3>
 			</div>
 			<div class="content">
-				<form action="', $scripturl, '?action=admin;area=theme;sa=admin;do=file" method="post" accept-charset="', $context['character_set'], '">
+				<form action="', $scripturl, '?action=admin;area=theme;sa=admin;do=file" method="post" accept-charset="', $context['character_set'], '" enctype="multipart/form-data">
 					<input type="file" name="theme_gz" id="theme_gz" value="theme_gz" size="40" onchange="this.form.copy.disabled = this.value != \'\'; this.form.theme_dir.disabled = this.value != \'\';" class="input_file" />
 					<input type="submit" name="save" value="' . $txt['save'] . '" class="button_submit" />
 				</form>

Themes/default/languages/Themes.english.php

@@ -96,8 +96,8 @@ $txt['hide_post_group_desc'] = 'Enabling this will not display a member\'s post
 
 $txt['subject_toggle'] = 'Show subjects in topics.';
 
-$txt['theme_adding_title'] = 'Obtaining Packages';
-$txt['theme_adding'] = 'You can always find new packages for your forum from the SMF modifications area - <strong><a href="http://custom.simplemachines.org/mods/" target="_blank">http://custom.simplemachines.org/mods/</a></strong>. You can browse them on the website, read the comments, and download them to your computer and then upload them to your forum from there.<br /><br />If you run into any questions with modifications, each modification published on simplemachines.org has a dedicated topic about it where support and comments should be directed to.';
+$txt['theme_adding_title'] = 'Obtaining Themes';
+$txt['theme_adding'] = 'You can always find new themes for your forum from the SMF themes area - <strong><a href="http://custom.simplemachines.org/themes/" target="_blank">http://custom.simplemachines.org/themes/</a></strong>. You can browse them on the website, read the comments, and download them to your computer and then upload them to your forum from there.<br /><br />If you run into any questions with themes, each modification published on simplemachines.org has a dedicated topic about it where support and comments should be directed to.';
 
 $txt['theme_options_defaults'] = 'These are the default values for some member specific settings.  Changing these will only affect new members and guests.';
 $txt['theme_options_title'] = 'Change or reset default options';