Ok I did the d/l of the 1 dll file and tried to d/l yahoo messenger again and came up with another missing dll file and then another and another and another etc...... I did a hijack this scan and am including the results with this...so now what?

Logfile of HijackThis v1.99.1
Scan saved at 1:23:29 PM, on 3/26/06
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS.000\SYSTEM\KERNEL32.DLL
C:\WINDOWS.000\SYSTEM\MSGSRV32.EXE
C:\WINDOWS.000\SYSTEM\MPREXE.EXE
C:\WINDOWS.000\SYSTEM\mmtask.tsk
C:\WINDOWS.000\EXPLORER.EXE
C:\WINDOWS.000\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\AIM\AIM.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS.000\SYSTEM\PSTORES.EXE
C:\WINDOWS.000\LOCAL SETTINGS\TEMPORARY INTERNET FILES\CONTENT.IE5\D3QED0LD\HIJACKTHIS[1].EXE

O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHELPER.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS.000\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [CountrySelection] pctptt.exe
O4 - HKLM\..\Run: [PTSNOOP] ptsnoop.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O6 - HKLM\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\PROGRAM FILES\AIM\AIM.EXE
O12 - Plugin for .mov: C:\PROGRA~1\INTERN~1\PLUGINS\npqtplugin.dll
O16 - DPF: Yahoo! Euchre - http://download.games.yahoo.com/game...ts/y/et1_x.cab
O16 - DPF: {5F8469B4-B055-49DD-83F7-62B522420ECC} (Facebook Photo Uploader Control) - http://upload.facebook.com/controls/...toUploader.cab