I installed plg_jw_sigpro-v2.0.5_j1.5 in Dec 2009 and everything worked perfectly. I use Joomla 1.5.23
On 6/6/2011 I noticed thumbnails for my photo galleries turned white. I thought may the website is loading too slow. I checked back today 3 times and I still see the white thumbnails. I don't think it is a permission issue due to it was working before.

Can someone help me?

Check your permissions please. Make sure that the thumbnails cache is writable.

I login to the Joomla backend admin and click on the Help | System info/Directory Permissions tab and both Cache directory & images are writable.

I went to cpanel Joomla's cache folder and change all jwsigpro_cache_***** to permission 755. The thumbnails still are white. What should I do next?

Did you made any modifications in your site? Ask you hosting company too.
If not please pm me access to your super admin to check it out.

Katia,

I'm going to take a wild guess. You're on Rochen Hosting? They just updated to PHP 5.3 and I'm guessing that is the reason why your gallery is broken. Same problem here. I've hear a lot of extensions/plug-ins are not php 5.3 compatible.

I did some research and found the answer in another forum that solve the problem.
Apparently the SIG works for 1.5.20 and earlier but not 1.5.23.

Change your .htaccess
RewriteRule ^(cache|includes|language|libraries|logs|tmp)/.*$ index.php [F,L] to
RewriteRule ^(includes|language|libraries|logs|tmp)/.*$ index.php [F,L]

Does anyone know would this cause any security issue? Or does anyone know php to only allow jwsigpro_cache to rewritable?

SIG works just fine in 1.5 and in 1.6.
So the problem is not related with the plugin.

I did some research and found the answer in another forum that solve the problem.
Apparently the SIG works for 1.5.20 and earlier but not 1.5.23.

Change your .htaccess
RewriteRule ^(cache|includes|language|libraries|logs|tmp)/.*$ index.php [F,L] to
RewriteRule ^(includes|language|libraries|logs|tmp)/.*$ index.php [F,L]

Does anyone know would this cause any security issue? Or does anyone know php to only allow jwsigpro_cache to rewritable?

So, is this a security hole? Do I really need to change my .htaccess file to get SIG to work on my 1.5.23 site?