No Signature Week has been cancelled. Reason being, forum software has been upgraded and this version is capable of limiting signatures.
By the time you read this, I have reset ALL signatures. You will need to update your signature again. However, now there are certain limitations that you need to be aware of.
All signatures are limited to 2 lines
Only 1 signature image will be allowed
Signature image limited to 500x150 pixels and must be uploaded to the server
To use uploaded signature image, use SIGPIC tag in your signature
External images via IMG tags are no longer allowed
Font size cannot be changed, font type and colour can be changed
As for the new forum software, there may be certain changes here and there that you need to get used to. Some minor problems such as lost posts are to be expected but should not be too large an issue. There are still some things I have yet to restore such as user titles but I will progressively make the necessary changes.