This is the portal page:
is it possible to set this page as the default forum page? Thanks

You understood very well. Thanks

sorry, been a bit busy. The easist option would be to change the default document for the folder in IIS, but you may not be able to do that. I'll have a quick think over the weekend and get back to you

Create a text file titled "web.config" if one doesn't already exist in the root directory of the forum. Contents should include the following:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<defaultDocument>
<files>
<clear />
<add value="portale.asp" />
<add value="default.asp" />
</files>
</defaultDocument>
</system.webServer>
</configuration>

If the file already exists, make sure the defaultDocument section is included in it. Upload back to the root directory of the forum.

Not sure what else to suggest without changing every occurrence of default.asp in the forum code and then renaming default.asp to something else and then rename portale.asp to default.asp. Not something to be undertaken lightly, you are using a very heavily modified code based on Imageforums Modded Snitz rather than the base code here