It's right there. Let HijackThis fix these:
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchURL = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.enjoysearch.info/search.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.enjoysearch.info
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.enjoysearch.info
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchURL = http://www.enjoysearch.info/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.enjoysearch.info
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.enjoysearch.info/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.enjoysearch.info/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.enjoysearch.info/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.enjoysearch.info
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchURL = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.enjoysearch.info/search.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.enjoysearch.info
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.enjoysearch.info/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.enjoysearch.info
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchURL = http://www.enjoysearch.info/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.enjoysearch.info
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.enjoysearch.info/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.enjoysearch.info/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://www.enjoysearch.info/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://www.enjoysearch.info
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.enjoysearch.info/search.html