This is the class that I use to create first the opportunity header and then specific line items,  PROBLEM,,,,  For some reason it only takes the first of the line items and adds it to the new renewal opportunity.  Please help I will give major kudos.

Heres the code:

public with sharing class RenewalOpportunityCreation {

    public static void CreateRenewalOpportunity(Map<Id,Opportunity> oldMap, Map<Id,Opportunity> newMap)
    {

        List<Opportunity> opptsToInsert = new List<Opportunity>();
        Opportunity newOppt = new Opportunity();

        List<Id> OpptyIds = new List<Id>();

        for (Opportunity o : newMap.Values())
        {   
            OpptyIds.add(o.id);
        }

        for(Opportunity oppt : [Select RecordTypeId, Name, Contact__c, AccountId, id, (Select PriceBookEntry.Name, unitprice, 
                                Quantity, Classification__c, Is_Price_book_Entry_Active__c,Is_Product_Active__c  From OpportunityLineItems 
                                Where (Classification__c= 'Software'  OR Classification__c= 'Bundle (SW w/ HW)' OR Classification__c= 'Annual Maintenance' 
                                OR Classification__c = 'Annual Maintenance - 2nd Year & Beyond'))             
                                From Opportunity where Id in :OpptyIds])
        {
            newOppt.Name =  oppt.Name + ' Renewal Opportunity';
            newOppt.AccountId = oppt.AccountId;
            newOppt.Contact__c = oppt.Contact__c;
            newOppt.RecordTypeId =  ServiceClass.getRecordTypesNameMap('Opportunity').get('Renewal Opportunity').Id;                                                        
            newOppt.CloseDate = Date.Today()+30;
            newOppt.StageName = 'Renewal Opportunity';                  
            newOppt.Type = 'Add-On Business';
            newOppt.NextStep = 'Send a invoice for maintenance renewal';
            newOppt.Payment_Terms__c = 'Net 30';
            newOppt.ForecastCategoryName = 'Omitted';
            newOppt.Owner_Location__c = 'FL';
            newOppt.Original_Opportunity__c = oppt.Id;
            newOppt.OwnerId = '00570000001MRuL';
            
            newOppt.Renewal_Software__c = '';
            
            for (OpportunityLineItem lineItem :oppt.OpportunityLineItems) 
            {
                newOppt.Renewal_Software__c = newOppt.Renewal_Software__c + LineItem.PriceBookEntry.Name + '\n';
            }
            
            if(newOppt.Renewal_Software__c <> Null)
            {
                opptsToInsert.add(newOppt);
            }
          
        }
    
        if(opptsToInsert.size() > 0)
        {
            insert(opptsToInsert);
            
            List<OpportunityLineItem> opptLineItemsToInsert = new List<OpportunityLineItem>();
            
            List<Opportunity> OpptIdToInsert = new List<Opportunity>();
            Opportunity newOpptId = new Opportunity();
  
            for(Opportunity opptInsertedIDs : [Select Id, Description from Opportunity where Id in :opptsToInsert])
            {   
                newOpptId.ID = opptInsertedIDs.id;
 
                OpportunityLineItem newOpptLineItem = new OpportunityLineItem();   
                       
           
            
                for(Opportunity opptInserted : [Select RecordTypeId, Name, Contact__c, AccountId, id, Description, (Select PricebookEntry.Name,PricebookEntryid, 
                                                UnitPrice, Quantity, TotalPrice, Classification__c, Is_Price_book_Entry_Active__c,Is_Product_Active__c  
                                                From OpportunityLineItems Where (Classification__c = 'Software'  OR Classification__c= 'Bundle (SW w/ HW)' 
                                                OR Classification__c= 'Annual Maintenance' OR Classification__c = 'Annual Maintenance - 2nd Year & Beyond')) 
                                                From Opportunity where Id in :OpptyIds])
                {       
                    for (OpportunityLineItem lineItem2 :opptInserted.OpportunityLineItems) {
                    newOpptLineItem.Quantity = lineItem2.Quantity;
                    newOpptLineItem.UnitPrice = lineItem2.UnitPrice;
                    newOpptLineItem.PricebookEntryId = lineitem2.PricebookEntry.id;
                }
              
                newOpptLineItem.OpportunityID = newOpptId.ID;
                
                
                opptLineItemsToInsert.add(newOpptLineItem);                 
                
            }
            if(opptLineItemsToInsert.size() > 0)
            {
                insert(opptLineItemsToInsert);
            }
        }}
    }
}

 Thank you,

 Steve Laycock