Hi! I'm working on a group project that's due today and I'm receiving the following error:

Code:
.\GroupProject.cpp(169) : error C2784: 'bool std::operator ==(const std::vector<_Ty,_Alloc> &,const std::vector<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::vector<_Ty,_Alloc> &' from 'std::basic_string<_Elem,_Traits,_Ax>'
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>,
            _Ax=std::allocator<char>
        ]
for this line:
Code:
if((search2[index]==searchItem)&&(search4[index]>=1))
when using this function:

Code:
void itemLookup(vector<string>& search1, vector<string>& search2, vector<int>& search3, vector<int>& search4, vector<int>& search5,
				 vector<double>& search6, vector<double>& search7, int searchSize)
{
	int searchItem=0;
	int index;
	int selection=0;

	cout<<"Please enter the name of the product to search for: "<<endl;
	cin>>searchItem;

	for(index=0; index<searchSize; index++)
	{
		if((search2[index]==searchItem)&&(search4[index]>=1))
		{
			cout<<"The item was found"<<endl;
			cout<<"What information do you need about this item?"<<endl;
			cout<<"1. Item Number"<<endl;
			cout<<"2. Pieces Ordered"<<endl;
			cout<<"3. Pieces In Store"<<endl;
			cout<<"4. Pieces Sold"<<endl;
			cout<<"5. Manufacturer Price"<<endl;
			cout<<"6. Selling Price"<<endl;
			cout<<"Please enter your selection 1-6: ";
			cin>>selection>>endl;
			if((selection<1)||(selection<7))
			{
				if(selection==1)
				{
					cout<<search1[index];
				}
				else
					if(selection==2)
					{
						cout<<search3[index];
					}
					else
						if(selection==3)
						{
							cout<<search4[index];
						}
						else
							if(selection==4)
							{
								cout<<search5[index];
							}
							else
								if(selection==5)
								{
									cout<<search6[index];
								}
								else
									if(selection==6)
									{
										cout<<search7[index];
									}
			break;
			}
		}
		else
		{
			cout<<"The store does not have this item."<<endl;
			break;
		}
		}
Am I able to compare vector values or is that why I am getting this error message? Any help would be greatly appreciated!
Thanks!

-Andrea