Hotfixes are stored in tables 
tblQuickFixEngineering and 
tblQuickFixEngineeringUni. You could use a report like the following example:
Select Top 1000000 tblAssets.AssetID,
  tblAssets.AssetName,
  tblAssets.Lastseen,
  tsysOS.OSname,
  tsysOS.Image As icon,
  tblQuickFixEngineeringUni.HotFixID,
  tblQuickFixEngineeringUni.Description,
  tblQuickFixEngineering.InstalledOn
From tblAssets
  Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
  Inner Join tblAssetGroupLink On tblAssets.AssetID = tblAssetGroupLink.AssetID
  Inner Join tblAssetGroups On tblAssetGroups.AssetGroupID =
    tblAssetGroupLink.AssetGroupID
  Inner Join tblQuickFixEngineering On tblAssets.AssetID =
    tblQuickFixEngineering.AssetID
  Inner Join tblQuickFixEngineeringUni On tblQuickFixEngineeringUni.QFEID =
    tblQuickFixEngineering.QFEID,
  tsysOS
Where tblAssetCustom.State = 1
Order By tblAssets.AssetName,
  tblQuickFixEngineering.InstalledOn Desc