stuck between operating systems & web servers ! ! ! !

ok ... im lost ...... i've been working on my site .... i've xp & iis 5 & php 4.1.2 now the server that im going to launch my site on is unix based ...... which i think works with apache alone ....... now i guess im stuck ..... what do i do now ...... convert all my hard work to unix and apache .... i believe i will have to change every single line of code i've coded ... or what ???? & if i have to .... is there an easier way about it ... ???? guyz .... i'll appreciate any word on this ..... thnx a million ...... __________________________________________________ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com