xlink help please

i am totally lost in trying to use xlink:form. i am trying to create a footnote reference. i entered the declaration:   xmlns:xlink="http://www.w3.org/1999/xlink" into my xsl document, but i keep getting the error "xlink not declared". when i remove the "form" part from my dtd and xsl document i receive no error but i am not getting the result i would like. 

i need a superscript number afterwards. i'm not sure if this is completely different problem altogether, but i can not seem to create a superscript on the same line after my footnote. i've used tables and blockquotes with classes but these create new lines.

p.s. do you know the entity reference for "no line break". i've used &nobr but i get the error "entity not declared". i can't find the declaration to enter anywhere.

thank you so much, i would appreciate any help.
stephanie
sshaddock@mindspring.com