images in signatures

[MatG]

Hi I am in desperate need for a hack that could do the following:

I have disabled IMG tags in signatures to all users on my VB 3. However I would like to be able to allow a certain 2 usergroups the abilty to be able to use images in thier signatures. The two user groups are:

1. Paying Members - We are turning our site into an offical club and this would be one of the advantages to being a "paid" member.

2. Supporting Traders - We have a number of companies wanting to advertise with us and this is one of the benifits they would like. As the use the forums as well as the members.

I would also like to do this for avaitors?

I used to have a PHPBB board and I got rid of it as the VB board seemed better to use for the transition from site to club. However without this hack its going to make the money side of the club hard to acheive. I have done a search on this subject and it seems a lot of people are in need of it, yet there is not a simple solution.

Any help would be very appriciated