<br>        Inclusion Criteria:<br><br>          -  Male or non-pregnant/non-lactating females >/=13 years of age (or >/= 18 years of age<br>             according to local requirements).<br><br>          -  Received fosamprenavir through prior participation in APV20001, APV30002, APV30003 or<br>             PRO30017 or have participated in APV30001 or other studies as deemed appropriate by<br>             the project team.<br><br>        Exclusion Criteria:<br><br>          -  Permanent discontinuation of GW433908 in a previous study due to intolerance.<br><br>          -  An active CDC Class C Event.<br><br>          -  Any condition which, in the opinion of the investigator, would preclude a subject from<br>             participation.<br>      ;<br>        Inclusion Criteria:<br><br>          -  Male or non-pregnant/non-lactating females >/=13 years of age (or >/= 18 years of age<br>             according to local requirements).<br><br>          -  Received fosamprenavir through prior participation in APV20001, APV30002, APV30003 or<br>             PRO30017 or have participated in APV30001 or other studies as deemed appropriate by<br>             the project team.<br><br>        Exclusion Criteria:<br><br>          -  Permanent discontinuation of GW433908 in a previous study due to intolerance.<br><br>          -  An active CDC Class C Event.<br><br>          -  Any condition which, in the opinion of the investigator, would preclude a subject from<br>             participation.<br>      ;<br>        Inclusion Criteria:<br><br>          -  Male or non-pregnant/non-lactating females >/=13 years of age (or >/= 18 years of age<br>             according to local requirements).<br><br>          -  Received fosamprenavir through prior participation in APV20001, APV30002, APV30003 or<br>             PRO30017 or have participated in APV30001 or other studies as deemed appropriate by<br>             the project team.<br><br>        Exclusion Criteria:<br><br>          -  Permanent discontinuation of GW433908 in a previous study due to intolerance.<br><br>          -  An active CDC Class C Event.<br><br>          -  Any condition which, in the opinion of the investigator, would preclude a subject from<br>             participation.<br>      ;<br>        Inclusion Criteria:<br><br>          -  Male or non-pregnant/non-lactating females >/=13 years of age (or >/= 18 years of age<br>             according to local requirements).<br><br>          -  Received fosamprenavir through prior participation in APV20001, APV30002, APV30003 or<br>             PRO30017 or have participated in APV30001 or other studies as deemed appropriate by<br>             the project team.<br><br>        Exclusion Criteria:<br><br>          -  Permanent discontinuation of GW433908 in a previous study due to intolerance.<br><br>          -  An active CDC Class C Event.<br><br>          -  Any condition which, in the opinion of the investigator, would preclude a subject from<br>             participation.<br>