I believe that its only HTML that is supported with this field. In category.html, you could use this to determine which file is included;
<%if ID == 1234%>
<%include this_file.html%>
<%elsif ID = 12345%>
<%include this_file2.html%>
<%elsif ... etc%>
...
<%endif%>
Cheers
Andy (mod)
andy@ultranerds.co.uk
Want to give me something back for my help? Please see my Amazon Wish List
GLinks ULTRA Package | GLinks ULTRA Package PRO
Links SQL Plugins | Website Design and SEO | UltraNerds | ULTRAGLobals Plugin | Pre-Made Template Sets | FREE GLinks Plugins!
<%if ID == 1234%>
<%include this_file.html%>
<%elsif ID = 12345%>
<%include this_file2.html%>
<%elsif ... etc%>
...
<%endif%>
Cheers
Andy (mod)
andy@ultranerds.co.uk
Want to give me something back for my help? Please see my Amazon Wish List
GLinks ULTRA Package | GLinks ULTRA Package PRO
Links SQL Plugins | Website Design and SEO | UltraNerds | ULTRAGLobals Plugin | Pre-Made Template Sets | FREE GLinks Plugins!