TR/Crypt.XPACK.Gen &TR/Dldr.Banload.tvg

I started the pc up one day and when windows xp pro sp2 loaded I got a warning message that the following file 'C:\Program Files\JoWooD\SpellForce\SpellForce.exe" contained the signature of TR/Crypt.XPACK.Gen.I scanned other files and it found this:
TR/Dldr.Banload.tvg, C:\Documents and Settings\maxdamage\Local Settings\temp\fastaero0751\FastAeroWM.dll.

I un-installed Spellforce Order of Dawn and re-installed it but when it came to install the .exe file on the 2nd cd F:\Bin\SpellForce.exe and Avira AntiVirus software detected the same maleware TR/Crypt.XPACK.Gen?I am busy downloading the programs listed in the Windows XP Cleaning Procedure.

The other file which is a .dll file has the TR/Dldr.Banload.tvg in it but Avira Antivirus only detected it recently and it is also found in the fastaero0751.zip file where FastAeroWM.dll is located as well.

I can delete fastaero0751.zip but why is the file spellforce.exe being targeted on the 2nd install cd for Spellforce-Order of Dawn by Avira AntiVirus?The file is clean afaik.

I use Avira AntiVirus software which I updated recently and I use Ad-Aware 2008 and busy updating the definition file right now.

 

Here attached is the combo log.